The 22 Best Natural Treatments and Remedies for OCD

Obsessive-compulsive disorder (OCD) is a chronic mental disorder characterized by obsessions (repetitive thoughts) and compulsions (repetitive actions).

It affects about 3 per cent of adults and 1 per cent of children (79).

It’s clear that both genetic and environmental factors contribute to the development of OCD.

Research shows that OCD is often inherited and passed down within families (89).

But experiencing abuse or trauma as a child also increases the risk of developing the disorder (86-88).

Both children and adults with OCD have high levels of cortisol (a stress hormone) in their blood, and increased glutamate (an excitatory neurotransmitter) in their brain (80-83).

They also have lower levels of GABA and serotonin, which are relaxing neurotransmitters in the brain (84-85).

Antidepressant medication is the standard treatment for OCD.

But many people prefer to manage and treat their OCD without having to rely on drugs.

Researchers have studied many different natural treatments for OCD, and this article explores the most promising ones.

The first section of this article explores the best nutrients, herbs and supplements to naturally treat OCD.

The second section of the article explores the best lifestyle habits, therapies and practices to combat and overcome OCD.

It is important to note that people with OCD often have to try more than one therapy to find one that works well for them.

You shouldn't suddenly change or discontinue your current OCD treatment without consulting with your doctor first.

But read on to learn about some of the best natural remedies and therapies that can help reduce your symptoms of obsessive-compulsive disorder.

The Best Nutrients, Herbs and Supplements for Naturally Treating OCD

1. N-Acetyl Cysteine

N-Acetyl-Cysteine (NAC) is a modified form of the amino acid cysteine.  

It’s also the precursor to glutathione, your body’s master antioxidant.  

Nowadays, we’re exposed to so many environmental toxins, which cause oxidative stress in the body and deplete our reserves of cysteine and glutathione.  

But supplementing with NAC can increase and normalize your cysteine and glutathione levels.  

This can combat and reduce oxidative stress in your brain, which can then help treat several mental illnesses, including OCD. 

More than one study has found that NAC can significantly improve OCD symptoms in more than half of OCD patients (44, 46).

And a systematic review determined that NAC is effective at reducing the severity of OCD symptoms with minimal side effects (45).

NAC is included in Optimal Antiox. 

Be sure to read this article all about the benefits of NAC.

2. Inositol

Inositol is a naturally-occurring molecule found in nearly all plants and animals. It plays a key role in various biological processes.  

The brain has the highest concentration of inositol, where it plays an important role making and affecting neurotransmitters, including serotonin (1).  

Inositol can be found in many foods, particularly fruit, especially cantaloupe and oranges (2).  These foods are included in my Free Grocery Shopping Guide for Optimal Brain and Mental Health.

It used to be considered a B Vitamin (Vitamin B8). But it currently is no longer considered an essential nutrient because your body can produce inositol from glucose (3). 

However, supplementation with inositol can still help reduce symptoms of OCD.  

In one study, patients with OCD took 18 grams of inositol or placebo daily for six weeks.  

At the end of the six weeks, the patients who took inositol had significantly lower scores on the Yale-Brown Obsessive Compulsive Scale.  

The researchers concluded that inositol can effectively treat obsessive-compulsive disorder (4-5). 

It’s important to point out that the research suggests that you need to take high doses (12 to 18 grams daily) if you want to experience the anxiety-reducing benefits of inositol. 

I took high doses of inositol when weening off psychiatric medication. 

I personally noticed a reduction in my obsessive-compulsive tendencies while supplementing with it. 

Check out my full post about inositol to learn more about the benefits. 

3. Zinc

Zinc is an essential mineral for mental health, especially if you have chronic anxiety.  

Unfortunately, many people are deficient in zinc. In fact, it’s estimated that 2 billion people in the world are deficient. And this often includes people with OCD. 

Researchers have found that patients with OCD tend to have much lower levels of zinc that individuals without OCD (49).  

And one study showed that zinc supplementation helped reduce obsessions and compulsions without side effects (50).  

I created and take the Optimal Zinc supplement to make sure my zinc levels are optimal. I created it because I want to give my clients and readers the very best zinc supplement so that they can experience superior results. I have found that many zinc supplements on the market fall short. Optimal Zinc includes several other nutrients (co-factors) that increase the absorption of zinc. 

Besides supplementing, you should also eat plenty of healthy, whole foods that contain zinc.  

Some of the best foods to optimize your zinc levels include:  

• Oysters  

• Grass-fed beef

• Pumpkin seeds

• Cashews

• Mushrooms  

• Spinach  

These foods are included in my Free Grocery Shopping Guide for Optimal Brain and Mental Health.  

Check out my previous post all about zinc and anxiety if you want to learn more about how zinc impacts anxiety levels and can contribute to OCD. 

Zinc can also stimulate your vagus nerve, which reduces anxiety. 

4. Glycine

Glycine is an amino acid commonly found in protein-rich foods such as meat, fish, collagen and gelatin. These foods are included in my Free Grocery Shopping Guide for Optimal Brain and Mental Health.

Glycine is one of three amino acids that your body uses to make glutathione, the master antioxidant in your body.  

Supplementing with 60 grams of glycine daily has been shown to reduce OCD symptoms (70).  

I personally take collagen protein powder to make sure I get enough glycine. Or you can supplement with pure glycine powder.

Another option is to take sarcosine.  

Sarcosine is a natural supplement that inhibits the uptake of glycine. By doing this, it increases the availability of glycine in the brain.  

Researchers have found that sarcosine can lead to quick, profound and sustained improvements in OCD symptoms (71).  

I’ve tried sarcosine and I find that it’s much more powerful and effective at improving mental health symptoms than taking glycine or collagen powder. It's very good at reducing anxiety.  

5. Curcumin

Curcumin is the most heavily researched compound within turmeric, the spice that gives curry its yellow colour.  

It’s one of my favourite natural compounds for optimal health.  

Research shows that curcumin can significantly improve obsessive-compulsive symptoms by increasing serotonin (53).  

Curcumin is a good option if you struggle with chronic inflammation, depression and OCD. 

In my experience, it doesn’t help as much if you only have anxiety. 

Curcumin is included in the Optimal Energy and Optimal Antiox supplements. 

Since curcumin is a fat soluble, take it with a fatty meal. 

6. Caffeine

Caffeine is a surprising natural remedy for OCD. 

It usually increases anxiety and stress in most people. 

But research shows that it can improve OCD symptoms.  

Two clinical trials found that caffeine significantly reduces the severity of OCD symptoms in people with treatment-resistant OCD (47-48).  

I recently cut out coffee completely but I used to drink this coffee.  

You can also just take pure caffeine tablets if you want. I sometimes take tablets before a workout. 

Coffee and caffeine can disrupt sleep though, so make sure you don’t drink it in the evening close to bed. Some people like me are really sensitive and have to stop drinking it very early in the day so that it doesn’t disrupt their sleep. 

It's also a good idea to try to consume the whole coffee fruit, instead of just coffee or pure caffeine. 

Traditionally, the coffee bean is extracted from the coffee fruit for roasting. And the surrounding fruit is discarded.  

But that’s a problem because the coffee fruit contains several healthy compounds not found in coffee beans themselves.  

And researchers have found that consuming whole coffee fruit concentrate can significantly enhance cognitive functioning.  

That’s why I included coffee fruit in the Optimal Brain supplement. 

7. Magnesium

Magnesium is the fourth most abundant mineral in the human body, and it’s absolutely essential for optimal mental health.  

It’s absolutely essential for the proper functioning of your nervous system and optimal neurotransmitter activity.  

Unfortunately, many people don’t get enough of it, even if they eat a healthy diet. 

Research shows that low magnesium levels contribute and worsen many neuropsychiatric problems, including OCD.  

Patients with OCD have significantly lower levels of magnesium in their blood than people without OCD (54).  

So if you have OCD, it’s clearly important to make sure you’re getting enough magnesium so that you don’t have a deficiency. 

Since most people are deficient, magnesium is one of the three supplements that I think everyone should be taking every day. That’s why it’s included in my Optimal Calm supplement.

Epsom salt baths are another great way to increase your body’s intake of magnesium.  

You should also make sure you’re eating enough magnesium-rich foods on a regular basis, including:  

• Spinach  

• Chard  

• Pumpkin seeds

• Almonds

• Avocado  

• Dark chocolate

• Bananas  

These foods are included in my Free Grocery Shopping Guide for Optimal Mental Health. 

8. Milk Thistle

Milk thistle is a herb commonly used to improve liver health and protect the liver from alcohol and other drugs. 

Silymarin, one of the flavonoids in milk thistle, has been shown to increase serotonin levels in the brains of animals (72).  

And one human study found that milk thistle works just as well as a popular SSRI antidepressant at reducing OCD symptoms (73).  

9. Probiotics

As you probably already know, the health of your gut (and the bacteria within it) significantly influence your brain and mental health.  

So not surprisingly, probiotics have been shown to be another possible natural remedy for OCD. 

Studies also show that the neurotransmitter serotonin is produced in the gut.  

By taking a probiotic supplement, you can enhance the diversity of the bacteria in your gut, create a better environment for the synthesis of serotonin, and therefore increase serotonin levels and activity in your brain (18). 

Probiotics have also been shown to stimulate the vagus nerve and reduce inflammation, which tends to be elevated in people with OCD. 

A systematic review of 38 studies concluded the probiotics can improve psychiatric disorder-related behaviors, including anxiety and OCD (55).  

The researchers found that the following probiotics can help with OCD: 

• Bifidobacterium longum 

• Bifidobacterium breve 

• Lactobacillus rhamnosus 

All three of these probiotics are included in the Optimal Biotics supplement. 

You can also check out this article to learn more about the top 9 psychobiotics that can help reduce your anxiety.  

And this article includes 5 ways to increase your good gut bacteria. 

10. Borage Oil

Borage oil is a natural remedy made from the seeds of the Borago officinalis plant. 

The oil is high in gamma linoleic acid (GLA), which is an essential fatty acid that must be obtained from your diet.  

It’s commonly used to help reduce the inflammation that is linked to many chronic diseases. 

Its anti-inflammatory effects may be why it helps reduce OCD.  

Researchers have found that 500 mg of borage oil per day can reduce obsessive and compulsive and anxiety symptoms (75).  

Animal research also shows that it can have anti-anxiety effects similar to benzodiazepines (74).  

I took borage oil years ago but no longer feel the need to take it.  

11. Iron

Iron is a trace mineral found in every living cell in our bodies.  

It carries oxygen to all parts of your body, and low levels can leave you feeling tired, pale, irritable and foggy.  

But research also shows that iron is an important cofactor in the synthesis of serotonin, and an iron deficiency can increase the risk of developing an anxiety disorder (6). 

Researchers have also found that blood iron levels are significantly lower in patients with mild and moderate OCD (51).  

Despite this, I don’t actually recommend supplementing with iron because some research suggests that too much iron can cause health problems and actually increase anxiety (7).  

It’s definitely a much better idea to test your iron levels and naturally get your iron from food.  

I make sure I get enough simply by taking grass-fed beef liver capsules.  

Beef liver is one of the best sources of iron. But I don’t like the taste of cooked beef liver, so I go with the capsules instead.  

Some other good sources of iron include: 

• Spirulina

• Dark chocolate

• Spinach

• Sardines

• Pistachios

• Raisons

These foods are included in my Free Grocery Shopping Guide for Optimal Brain and Mental Health. 

12. Ashwagandha

Ashwagandha (Withania sominifera) is a popular Indian herb that has been used for more than 3000 years. It’s sometimes called the “Indian Ginseng”.  

It’s known as an “adaptogen”, which is a compound that balances the body and restores normal bodily functioning after chronic stress. 

In one study, 30 people with OCD took ashwagandha for 6 weeks, and it notably and significantly reduced their OCD symptoms (52).  

Animal research also shows that ashwagandha causes anti-anxiety effects, reduces OCD-like behaviour and improves stress tolerance in rats (8-13). 

So it’s a pretty impressive herbal remedy for OCD and anxiety.

But how does it work?  

By increasing serotonin and GABA in the brain, and lowering cortisol levels by 25 per cent (14-17).  

Ashwagandha is one of the main herbs I took to help myself get off psychiatric medications. 

It’s included in the Optimal Calm supplement.

13. Saffron

Saffron is a spice derived from the Crocus sativus plant.  

It has a number of health benefits due to the medicinal compounds within it.  

Saffron is one of the best supplements for reducing depression, anxiety and stress. 

Safranal and Crocetin, two of the compounds within saffron, have been shown to stimulate GABA receptors and increase serotonin levels in the brain (19-20). 

As a result, researchers have determined that saffron can reduce compulsive behavior (56).  

14. Valerian

Valerian (Valeriana officinalis) is a natural herb, and the root of the herb has traditionally been used to treat insomnia.  

But it also can reduce symptoms of OCD. 

In one study, supplementing with 750 mg of valerian for eight weeks reduced symptoms by 25% in people diagnosed with OCD (57).  

And in an animal study, valerian demonstrated anti-obsessive and anti-compulsive effects and researchers determined it's a good candidate for treating obsessive-compulsive disorder (21). 

Scientists have collected a massive amount of research demonstrating that the compounds in valerian naturally reduce symptoms of OCD by:  

• Partially activating serotonin receptors 

• Maintaining serotonin levels  

• Reducing stress hormone levels 

• Binding to GABA receptors in the amygdala, a brain region associated with fear and anxiety

• Increasing GABA levels 

• Inhibiting the breakdown of GABA in the brain (22-43). 

As a result of this, it creates a calming effect similar to anti-anxiety drugs like Xanax and Valium.  

This is why valerian is often called “Nature’s Valium”.  

Valerian is one of the first herbal remedies I took years ago to manage my anxiety at night and improve my sleep.  

It’s included in this anti-anxiety supplement.  

Valerian supplements include the roots and stems of the plant.  

But you can also take it as a tea or tincture if you want. 

The Best Lifestyle Habits, Therapies and Practices for Naturally Treating OCD

15. Cognitive Behavioral Therapy

Cognitive behavioral therapy (CBT) is one of the first-line treatments for OCD. 

It involves challenging and changing unhelpful cognitive distortions and behaviors, improving emotional regulation, and developing personal coping strategies. 

A meta-analysis of high-quality studies concluded that CBT is an effective method for treating OCD and reducing OCD symptoms (77-78).  

I personally never found CBT helpful for my mental health issues but other people do. 

It’s definitely worth trying if you OCD though. 

16. Neurofeedback

Neurofeedback is a type of biofeedback that shows you your brain activity in real-time and teaches you how to self-regulate it.  

Sensors are placed on your scalp to measure your brain’s activity, and the measurements are displayed using video or sound. 

Personally, neurofeedback was one of the most impactful actions I took to overcome severe anxiety. 

It works at a deep subconscious level, breaking the cycle of chronic anxiety.  

It allows shifts you into a natural, healthier state of mind.  

And research shows that it works for people with OCD. 

One study showed that it can normalize brain activity in people with OCD (58). 

If you want to try neurofeedback, it’s best to work with a qualified neurofeedback practitioner.  

If you’re interested in neurofeedback, I recommend becoming a client and working with us to determine the best type of neurofeedback for you and your condition. I have found that some types of neurofeedback are completely ineffective and may even be harmful. So it’s very important to do the right type of neurofeedback that actually works.

I also sometimes recommend the Muse headband. It’s a decent substitute to real neurofeedback and gives you real-time feedback in your brainwaves while you meditate.

I previously wrote about the Muse headband here, and you can get it through the Muse website. But keep in mind that it’s definitely not as good as clinical neurofeedback.

Please note: If you’re interested in trying neurofeedback, I recommend becoming a client and working with us to determine the best type of neurofeedback for you and your condition. I have found that some types of neurofeedback are completely ineffective and may even be harmful. So it’s very important to do the right type of neurofeedback that actually works. It’s also critical to work with a qualified neurofeedback practitioner who knows what they are doing. Otherwise, you can get worse. We help our clients find a qualified practitioner in their area.

17. Light Therapy

Light therapy is another natural therapy that you may be able to use to manage and treat your OCD. 

I came across a case study of a woman who had OCD and it got a lot worse in the winter. 

But two hours of light therapy every day for two weeks improved her mood and reduced her symptoms of obsession. 

What’s most surprising is that her condition remained stable for 16 months afterwards. She even made it through the next following winter (69).  

I personally get sunlight every day during the spring and summer months to support my mental health.  

I also use a number of different at-home devices to improve my mood and optimize my brain function. 

Throughout the winter, I use a seasonal affective disorder (SAD) light box. I turn it on next to my desk in the morning.

I also have a Vitamin D sunlamp for the winter months. 

And all year around, I use low-level red-light therapy (LLLT) to improve my mood and cognitive function. I use these three LLLT devices: 

• Optimal 1000 Brain Photobiomodulation Therapy Light (Combo Red/NIR) - This is a powerful device that shines 660 nm of red light and 850 nm of infrared light. I shine it on my forehead for 5 minutes every day. I also shine it on other parts of my head and on my entire body, including on my thyroid, thymus gland and gut. I experience incredible benefits from doing this.

• Optimal 300 Brain Photobiomodulation Therapy Light (Combo Red/NIR) - This is a smaller and more convenient device that I take with me when I’m travelling. I shine it on my forehead.

• Vielight Neuro Duo – This is a transcranial-intranasal headset with 810 nm of near infrared light that I’ve now been using regularly. It penetrates deeper into brain tissue and is absorbed better by the central nervous system. If you decide to get this one, you can use the coupon code JORDANFALLIS for a 10% discount. Some research has shown a 20-fold higher efficiency of light delivery to the deep brain through the nose instead of transcranial application (125). Vielight has several different devices and you can also use the coupon code JORDANFALLIS for 10% off any of them.

You can read more about LLLT here.  

I highly recommend all of the above devices if you really want to optimize your mental health and reduce symptoms of OCD. 

18. Meditation

Meditation is my favourite daily activity to relax and ground myself. 

And if you have OCD, you should try to add it into your daily routine as well. 

In one study, OCD patients received mindfulness training. They were taught meditative breathing, body-scan, and mindful daily living.  

By the end of the study, they witnessed a “significant and large reduction” in their OCD symptoms. It was much easier for them to “let go” (66).  

I use the Muse headband to meditate. It gives you real-time feedback while you meditate. That way, you know how well you are meditating. It makes meditation a lot more fun and tolerable.  

I previously wrote about the Muse headband here, and you can get it through the Muse website. 

19. Mindfulness-Based Cognitive Therapy

Mindfulness-based cognitive therapy (MBCT) is a type of therapy that includes a mix of cognitive behavioral therapy methods and mindfulness meditate practices. 

As mentioned before, mindfulness meditation and cognitive behavioral therapy help people with OCD individually. 

So it’s not too surprising they also help when used in combination. 

In one study, eight weeks of MBCT reduced OCD symptoms.  

Two third of the participants reported a decline in symptoms, including an increased ability to let unpleasant emotions surface and to live more consciously in the present (76).  

20. Exercise

Exercise is another natural way to manage and treat OCD. 

It’s easily accessible and free, and many doctors and researchers recommend exercise as their number one piece of advice for optimal mental health. 

Five different studies have found that aerobic exercise can reduce OCD symptoms (59-63).  

After exercising for 12 weeks, study participants reported fewer obsessions and compulsions, and the benefits remain for 6 months (64).  

The exercise doesn’t need to be intense though.  

Even simply walking can reduce symptoms of OCD (65).  

Exercise can be a big chore for a lot of people, so I recommend finding some sort of sport or aerobic activity that you enjoy. That way you won’t get sick of it and you’ll exercise regularly. 

21. Music

Music is actually very healing and can have a calming effect on the brain. 

I previously wrote about how music can naturally reduce cortisol, and increase dopamine and oxytocin. 

This is probably why it’s been shown to help people with OCD. 

In one study, music therapy reduced symptoms of obsession, depression and anxiety in patients with OCD (67).  

22. Acupuncture

Acupuncture is another natural treatment that has been shown to help people with OCD. 

In one study, 19 patients with treatment-resistant OCD received 12 sessions of acupuncture, and it significantly alleviated their OCD symptoms (68). 

I’m personally a really big fan of auricular acupuncture. Auricular acupuncture is when needles are inserted into ear. I’d recommend trying to find a health practitioner in your area who provides it, especially if you’re weening off psychiatric medication. It really helped me the first time I came off antidepressants. I was surprised.  

At the end of each appointment, my practitioner would secure small black seeds on my ear.  

In my experience, ear acupuncture is more effective than regular acupuncture.  

I also lie on an acupuncture mat at home to relax before bed. 

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Live Optimally,

Jordan Fallis

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References:  

(1) https://en.wikipedia.org/wiki/Inositol  

(2) https://www.ncbi.nlm.nih.gov/pubmed/7416064 

(3) https://en.wikipedia.org/wiki/Inositol 

(4) https://www.ncbi.nlm.nih.gov/pubmed/8780431  

(5) https://www.ncbi.nlm.nih.gov/pubmed/9169302 

(6) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3680022/ 

(7) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4253901/ 

(8) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3252722/  

(9) https://www.ncbi.nlm.nih.gov/pubmed/11194174  

(10) https://www.https://www.ncbi.nlm.nih.gov/pubmed/18476388cbi.nlm.nih.gov/pubmed/18476388  

(11) https://www.ncbi.nlm.nih.gov/pubmed/22546655  

(12) https://www.ncbi.nlm.nih.gov/pubmed/12895672  

(13) https://www.ncbi.nlm.nih.gov/pubmed/10075127 

(14) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4270108/  

(15) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3252722/  

(16) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2958355/pdf/IJPsy-42-295.pdf  

(17) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3040882/ 

(18) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5319175/ 

(19) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4599112/  

(20) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4599118/ 

(21) https://www.ncbi.nlm.nih.gov/pubmed/22718671 

(22) https://www.ncbi.nlm.nih.gov/pubmed/14742369  

(22) https://www.ncbi.nlm.nih.gov/pubmed/10411208  

(24) https://www.ncbi.nlm.nih.gov/pubmed/17585957  

(25) https://www.ncbi.nlm.nih.gov/pubmed/18095218  

(26) https://www.ncbi.nlm.nih.gov/books/NBK11084/  

(27) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4863311/  

(28) https://www.ncbi.nlm.nih.gov/pubmed/14751470  

(29) https://www.ncbi.nlm.nih.gov/pubmed/12895671  

(30) https://www.ncbi.nlm.nih.gov/pubmed/12662130  

(31) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4303399/  

(32) https://www.ncbi.nlm.nih.gov/pubmed/20634372  

(33) https://www.ncbi.nlm.nih.gov/pubmed/24758222  

(34) https://www.ncbi.nlm.nih.gov/pubmed/18160026  

(35) https://www.ncbi.nlm.nih.gov/pubmed/18602406  

(36) https://www.ncbi.nlm.nih.gov/pubmed/20042323  

(37) https://www.ncbi.nlm.nih.gov/pubmed/25495725  

(38) https://www.ncbi.nlm.nih.gov/pubmed/26177123  

(39) https://www.ncbi.nh  

(40) https://jamanetwork.com/journals/jamapsychiatry/fullarticle/482548  

(41) https://www.ncbi.nlm.nih.gov/pubmed/15921820  

(42) https://www.ncbi.nlm.nih.gov/pubmed/10622375  

(43) https://www.ncbi.nlm.nih.gov/pubmed/24055511 

(44) https://www.ncbi.nlm.nih.gov/pubmed/19581567 

(45) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4423164/ 

(46) https://www.ncbi.nlm.nih.gov/pubmed/23131885 

(47) https://www.ncbi.nlm.nih.gov/pubmed/19573497 

(48) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6559101/ 

(49) https://www.ncbi.nlm.nih.gov/pubmed/22383079 

(50) https://www.ncbi.nlm.nih.gov/pubmed/22465904 

(51) https://www.ncbi.nlm.nih.gov/pubmed/22383079 

(52) https://www.ncbi.nlm.nih.gov/pubmed/27515872 

(53) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3354439/ 

(54) https://www.ncbi.nlm.nih.gov/pubmed/22383079 

(55) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5056568/ 

(56) https://www.ncbi.nlm.nih.gov/pubmed/22985509 

(57) https://www.ncbi.nlm.nih.gov/pubmed/22718671 

(58) http://www.yalescientific.org/2016/02/battling-ocd-in-real-time-live-brain-imaging-helps-patients-attack-anxiety-at-the-source/ 

(59) https://www.ncbi.nlm.nih.gov/pubmed/17568300/ 

(60) https://www.ncbi.nlm.nih.gov/pubmed/19616916/ 

(61) https://www.ncbi.nlm.nih.gov/pubmed/25738234 

(62) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5726421/ 

(63) https://www.ncbi.nlm.nih.gov/pubmed/30699885 

(64) https://www.ncbi.nlm.nih.gov/pubmed/19616916 

(65) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3567313/ 

(66) https://www.ncbi.nlm.nih.gov/pubmed/18852623 

(67) https://www.ncbi.nlm.nih.gov/pubmed/26066780 

(68) https://www.ncbi.nlm.nih.gov/pubmed/19684500 

(69) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4361980/ 

(70) https://www.ncbi.nlm.nih.gov/pubmed/19046587 

(71) https://www.ncbi.nlm.nih.gov/pubmed/21508860 

(72) https://www.tandfonline.com/doi/abs/10.1080/13880200490519712 

(73) https://www.ncbi.nlm.nih.gov/pubmed/20035818 

(74) https://www.ncbi.nlm.nih.gov/pubmed/15261383 

(75) https://www.ncbi.nlm.nih.gov/pubmed/19737592 

(76) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3549892/ 

(77) https://www.ncbi.nlm.nih.gov/pubmed/17849776 

(78) https://www.ncbi.nlm.nih.gov/pubmed/22999486 

(79) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2797569/ 

(80) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3613755/ 

(81) https://www.ncbi.nlm.nih.gov/pubmed/18424906/  

(82) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3762604/ 

(83) https://www.ncbi.nlm.nih.gov/pubmed/12888801/ 

(84) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3762604/ 

(85) https://www.ncbi.nlm.nih.gov/pubmed/8201248 

(86) https://www.ncbi.nlm.nih.gov/pubmed/22024245 

(87) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3181951/ 

(88) https://www.ncbi.nlm.nih.gov/pubmed/28549337 

(89) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3181951/

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20 Nutrient Deficiencies Proven to Cause Depression

Being depressed doesn’t mean you’re weak.

It’s not a defect in your personality. 

As I’m sure you know, it’s often caused by physiological changes in your body and brain.

So you need to think of it like any other illness. 

If you have a broken bone, you need to wear a cast to stabilize the bone while it heals. 

And if you have depression, you need to be kind to yourself, as you seek and address the underlying root causes. 

The good news is that you’re not powerless. 

I used to think that I’d be depressed forever.

That my depression was simply genetic, and I couldn’t do anything about it. 

In fact, I accepted that notion for a while.

I felt defeated and hopeless, and thought I'd feel that way for my entire life.

I told myself I’d simply have to rely on drugs to survive because that’s just “how I’m wired”. 

But then one day, I changed my mind and decided that I’d had enough. 

And I was actually going to get to the bottom of it instead of just accepting it.

I took action and searched far and wide for safer and healthier solutions to deal with my depression.

I came across a lot of different research and therapies.

I wasn’t sure if they would work, but then they did.

And I overcome my depression for good. 

One of my most important discoveries was that nutrient deficiencies can make your depression worse. 

And they could even be the root cause of it. 

It made so much sense.

But why hadn’t anyone ever brought it up?

I delved deeper into the scientific literature, and I found MANY nutrient deficiencies that can contribute to depression.

I started increasing my intake of them.

And I got better.

Much better.

This new post includes 20 nutrient deficiencies that could be making you feel depressed.

Read on to learn more. 

Vitamin Deficiencies That Can Cause Depression

1. Vitamin B12

“Lack of understanding of B12 is one of the greatest tragedies of modern medicine.”

— Dr. James Greenblatt, Integrative Psychiatrist

Having sufficient levels of Vitamin B12 is necessary for optimal brain and mental health.  

Unfortunately, a deficiency is very common, especially in older individuals and vegetarians and vegans.

And even if you eat meat and you’re young, you may still have a deficiency. 

Poor gut health and even psychiatric medications can cause a deficiency.

In fact, it’s estimated that almost 40% of Americans are deficient today.

Numerous studies have shown that having a deficiency in Vitamin B12 leads to symptoms of depression (16-22). 

And B12 levels tend to be significantly lower in people who are depressed (13). 

In one study, subjects with Vitamin B12 deficiency were 2 times as likely to be severely depressed as non-deficient subjects (15). 

Even a mild decrease in B12 levels is associated with mood disturbances (14). 

Luckily, there are steps you can take if you’re deficient. 

Vitamin B12 is found primarily in animal foods, and beef liver is an excellent source. I take beef liver capsules because I don’t like the taste of liver.

You may also want to supplement with Vitamin B12 because studies show that B12 supplementation significantly lowers homocysteine levels and reduces depressive symptoms (23-24). 

If you decide to supplement, avoid the semisynthetic version of B12 (cyanocobalamin) and instead take the methylated form (methylcobalamin or methyl-B12). 

Methyl-B12 is better absorbed and more biologically active.

2. Vitamin D (and Vitamin K2)

Vitamin D is a fat-soluble vitamin that your skin synthesizes when exposed to the sun.

Every tissue in your body has Vitamin D receptors, including the brain, so a deficiency can lead to costly physiological and psychological consequences, including depression.

Researchers have found a very strong link between Vitamin D deficiency and depression (27-28). 

The lower your Vitamin D levels, the more symptoms of depression you are likely to have (35). 

Unfortunately, reports indicate that Vitamin D deficiency is widespread and a major health problem globally (25). 

Researchers estimate that 50 percent of the general population is at risk of Vitamin D deficiency (26). 

It’s best to get your Vitamin D by going outside and getting sunlight.

It’s especially important to make sure you get some sunlight in the morning to set your circadian rhythm. 

But most people still don’t get enough Vitamin D from the sun, especially during the winter.

That’s why I recommend taking a Vitamin D supplement. 

Research does show that taking a Vitamin D3 supplement is effective at reducing symptoms of depression and seasonal affective disorder (29-31). 

This is likely because Vitamin D increases the production of numerous neurotransmitters, including serotonin, dopamine, norepinephrine and epinephrine (32-34). 

It's important to test and monitor your Vitamin D levels before and after supplementing with it.

Lastly, if you decide to supplement with Vitamin D3, you should consider taking it with Vitamin K2. 

A recent study found that Vitamin K2 reduces depression in animals (36). 

And Vitamin K2 is known to improve brain function in humans (37-38). 

3. Vitamin B6

Having a deficiency in Vitamin B6 can also contribute to your depression.

It’s a key nutrient that supports your entire nervous system.

It can boost your mood because it plays a key role in the production of neurotransmitters in your brain, including serotonin and dopamine. It also lowers homocysteine. 

Research shows that people with depressive symptoms tend to have low levels of Vitamin B6 (85-87). 

A Vitamin B6 deficiency also contributes to chronic inflammation, which is one of the main underlying root causes of depression (88). 

Fortunately, consuming more Vitamin B6 can help. 

One study found that women that eat more foods containing Vitamin B6 have a lower risk of depression (89). 

Some of the best food sources of Vitamin B6 include potatoes, bananas and chicken. 

But supplementation is often necessary to see quick improvements. 

One study found that supplementing with Vitamin B6 can reduce depressive symptoms by lowering homocysteine levels (90). 

When I took antidepressants for depression, multiple functional and integrative doctors suggested I supplement with Vitamin B6.

This is because these medications can actually further deplete Vitamin B6, increasing depression in the long run. 

Vitamin B6 is included in the Optimal Zinc supplement.

4. Vitamin C

Having low levels of Vitamin C can also make you feel depressed.

Researchers have found that poor Vitamin C status is associated with increased symptoms of depression (105). 

Animal research also shows that a Vitamin C deficiency can lead to low levels of dopamine and serotonin in the brain, which causes mice to act depressed (106-107). 

As you probably know, Vitamin C can be found in foods such as peppers, citrus fruits, green leafy vegetables, broccoli, tomatoes, and berries. These foods are included in my Free Grocery Shopping Guide for Optimal Mental Health.

In addition to getting Vitamin C from fruits and vegetables, I take at least 500 grams of this Vitamin C every day. 

I’ve experimented with taking up to 10 grams daily, and it definitely improved my mood and reduced my stress levels, especially when I was coming off antidepressants. 

Research backs this up, showing that supplementing with Vitamin C can actually improve mood in both unhealthy and healthy individuals (95, 102-103). 

Various other studies show that Vitamin C supplements reduce stress and anxiety and decrease the severity of depression (96-101, 104).

Studies even show that Vitamin C can increase the effectiveness of antidepressants (108-109). 

5. Folate

Folate (Vitamin B9) is an essential B vitamin that plays a key role in methylation, one of the most important processes in your body and brain for optimal energy and nervous system function.

Researchers have found that if you are depressed, you likely have lower levels of folate circulating in your blood, and people with low blood folate are at greater risk for developing depression (55-56). 

Good dietary sources of natural folate include: 

• Leafy greens

• Asparagus

• Broccoli

• Cauliflower

• Strawberries

• Avocado

• Beef liver

• Poultry

These foods are included in my Free Grocery Shopping Guide for Optimal Brain and Mental Health.

However, eating folate-rich foods sometimes isn’t enough. In fact, many people do not get enough folate from food because cooking and food processing destroy natural folates (54).

And supplementation is often needed. 

In one study, patients with depression took methylfolate for 6 months, and they witnessed a significant improvement in their depressive symptoms (57). 

Researchers have even suggested that folate supplementation should be a first-line treatment for depression (58). 

Methylfolate can be effective at treating depression because it helps lower homocysteine levels, helps produce serotonin and dopamine, and stimulates serotonin receptors in the brain (59-62). 

6. Thiamine

Thiamine, also known as Vitamin B1, is an essential water-soluble nutrient that cannot be made by the body. 

It’s used in nearly every cell in the body and especially important for supporting energy levels.

It’s also required by nerve cells and other supporting cells in the nervous system (167). 

Research shows that lower levels of Vitamin B1 are associated with a higher prevalence of depressive symptoms (168).

Vitamin B1 deficiency is also known to lead to irritability and symptoms of depression (170). 

Some doctors and researchers believe that postpartum depression is sometimes simply a Vitamin B1 deficiency (169). 

Luckily, consuming more Vitamin B1 can help.

A randomized, double-blind clinical trial found that Vitamin B1 supplementation reduces symptoms of depression within 6 weeks (171). 

And another concluded that Vitamin B1 supplementation improves mood, reduces brain fog, and speeds up reaction time (172).

In fact, researchers have even found that subjects’ mood improves if the amount of Vitamin B1 in their blood increases, and that the opposite occurs if the amount of Vitamin B1 in their blood decreases (173). 

Healthy food sources of Vitamin B1 include green peas, beef liver, asparagus, pecans, spinach, sunflower seeds, macadamia nuts, oranges, cantaloupe and eggs. 

These foods are included in my Free Grocery Shopping Guide for Optimal Mental Health.

7. Riboflavin

Riboflavin, also known as Vitamin B2, plays a key role in energy metabolism throughout your entire body.  

As a result, a Vitamin B2 deficiency can affect the entire body, leading to low energy, weight gain, and depression.

In fact, lower levels of Vitamin B2 have been found in people with depression (91). 

Researchers have also found that Vitamin B2 consumption decreases risk of postpartum depression (92). 

Healthy food sources of Vitamin B2 include pastured eggs, leafy vegetables, beef liver, mushrooms, sunflower seeds, and almonds. 

These foods are included in my Free Grocery Shopping Guide for Optimal Mental Health.

If you’d like, you can also supplement with Vitamin B2.

Studies show that supplementing with Vitamin B2 helps lower homocysteine and reduces depressive symptoms (93-94). 

Vitamin B2 is included in the Optimal Zinc supplement. 

8. Inositol

Inositol is a naturally-occurring molecule found in nearly all plants and animals. It plays a key role in various biological processes.

The brain has the highest concentration of inositol, where it plays an important role making neurotransmitters (124). 

Inositol can be found in many foods, particularly fruit, especially cantaloupe and oranges (125). 

It used to be considered a B Vitamin, called Vitamin B8. But it currently is no longer considered an essential nutrient because your body can produce inositol from glucose (126). 

But I’m including it in this list anyway because individuals with depression have very low levels of inositol in their brains (127-129). 

And inositol supplementation has been shown to increase inositol levels and help treat depression (130, 132). 

It can also reduce symptoms of depression in women with premenstrual syndrome and premenstrual dysphoric disorder (131, 133). 

It’s even been shown to help patients who have discontinued their antidepressant medication (134). 

I took high doses of inositol powder when weening off psychiatric medication.

Check out my full post about inositol to learn more about the benefits. 

Fun fact: Inositol is also used as a stand-in for cocaine in television shows and movies. 

9. Coenzyme Q10

Coenzyme Q10 (CoQ10) is a coenzyme and antioxidant located primarily in the mitochondria. It has numerous known health benefits and plays a critical role in producing energy for the body.

CoQ10 is produced within the body, but it’s also found within food and can be supplied to the body through food or supplementation. It resembles a fat-soluble vitamin.

Meat and fish are the richest sources of dietary CoQ10, including beef, pork, chicken heart, and chicken liver. Nuts and some oils also contain some CoQ10 (110). 

Research shows that CoQ10 levels are reduced in people with depression and chronic fatigue (111). 

One study also found that CoQ10 regulates serotonin levels and depressive symptoms in fibromyalgia patients (117). 

CoQ10 supplementation has also been shown to improve fatigue and reduce depression symptom severity (112-114). 

It also displays antidepressant-like activity in animals (115-116). 

Mineral Deficiencies That Can Cause Depression

10. Magnesium

Magnesium is a vital mineral that participates in more than 300 biochemical reactions in your body.

Unfortunately, a lot of people are deficient in magnesium today.  

This is a shame because magnesium is absolutely essential for the proper functioning of your nervous system and optimal neurotransmitter activity. 

Research shows that low magnesium levels contribute and worsen many neuropsychiatric problems, including depression (42). 

In fact, researchers have found that people with depression have lower magnesium levels than healthy people (49). 

They’ve also found a significant association between very low magnesium intake and depression (43). 

On top of this, animal research shows that removing magnesium from their diet results in depressive-like symptoms (50). 

So if you’re struggling with depression, it’s very important to make sure you’re getting enough magnesium so that you don’t have a deficiency.

Luckily, there are a number of ways to do this. 

First, make sure you’re eating magnesium-rich foods on a regular basis, including:

• Spinach

• Chard

• Pumpkin seeds

• Almonds

• Avocado

• Dark chocolate

• Bananas

These foods are included in my Free Grocery Shopping Guide for Optimal Mental Health.

Epsom salt baths are another great way to increase your body’s intake of magnesium. 

I also highly recommend a high-quality supplement that includes magnesium.

Magnesium is included in this supplement.

A number of studies have concluded that magnesium supplementation can reduce depressive symptoms in humans – sometimes within 7 days (44-48). 

Since most people are deficient, magnesium is one of the three supplements that I think everyone should be taking.

11. Zinc

Zinc is an essential mineral for mental health.

Like magnesium, it plays a key role in neurotransmission and nervous system functioning.

Mounting evidence suggests a link between zinc deficiency and the development and severity of depression (66-68, 76).  

Depressed patients tend to have lower levels of zinc. And as their zinc levels drop, their depressive symptoms get worse (81-84). 

Unfortunately, it’s estimated that 2 billion people in the world are deficient in zinc, and several studies show that even subclinical deficiency of zinc impairs brain function in children and adults (63-65). 

So, if you struggle with depression, it’s quite possible that you’re deficient, and you’ll definitely want to optimize your zinc levels. 

Some of the best food sources of zinc include:

• Oysters

• Grass-fed beef

• Pumpkin seeds

• Cashews

• Mushrooms

• Spinach

These foods are included in my Free Grocery Shopping Guide for Optimal Brain and Mental Health.

However, if you’re deficient like I was, I recommend taking a high-quality zinc supplement, at least for a short period of time. 

A meta-analysis and several studies have concluded that zinc supplementation has antidepressant effects and significantly reduces symptoms of depression. One way it improves mood is by significantly increasing BDNF levels (69-75, 77-80).

I created and take the Optimal Zinc supplement to make sure my zinc levels are optimal. 

Check out my previous post all about zinc if you’re interested in discovering more steps you can take to increase your zinc levels.

12. Iron

Iron is a trace mineral found in every living cell in our bodies.

It carries oxygen to all parts of your body, and low levels can leave you feeling tired, pale, irritable and foggy. 

Sounds like depression doesn’t it?

Several studies show that iron deficiency increases the risk of developing depression and increases the severity of depression (184-186, 188-190). 

Researchers have also conducted a meta-analysis and found that high iron intake reduces the chance of developing depression (183). 

In one study, iron supplementation resulted in a 25% improvement in depressive symptoms (187). 

Despite this, I don’t actually recommend supplementing with iron though because some research suggests that too much iron can cause health problems.

It’s definitely preferable to get your iron from food. 

I make sure I get enough iron simply by taking grass-fed beef liver capsules.

Beef liver is one of the best sources of iron, but I don’t like the taste, so I go with the capsules.

Other good sources of iron include:

• Spirulina

• Dark chocolate

• Spinach

• Sardines

• Pistachios

• Raisons

These foods are included in my Free Grocery Shopping Guide for Optimal Mental Health.

13. Selenium

Selenium is an essential trace mineral that is important for many bodily processes that affect your brain and mental health.

Researchers have found that depression is associated with low levels of selenium (191). 

But supplementing with selenium has been shown to significantly increase selenium levels and improve symptoms of depression (192). 

Other research shows that selenium intake is associated with a general elevation of mood (193). 

Brazil nuts are the richest dietary source of selenium, but it can also be found in wild-caught seafood, pastured chicken and eggs, and grass-fed meat.

I also make sure I’m not deficiency in selenium by supplementing with it.

Selenium is included in this supplement.

14. Manganese

Manganese is an important trace mineral for human health. It acts as a cofactor, helping many enzymes carry out their functions in the body.

Research shows that having low levels of manganese can contribute to the development of depression (135). 

One study found that depressed patients had significantly lower levels of “manganese superoxide dismutase”, which is a manganese-dependent enzyme (136). 

Researchers have also found that women with higher manganese intake had a lower prevalence of depressive symptoms (137). 

Hazelnuts and macadamia nuts contain high levels of manganese, while leafy green vegetables, tea, chocolate and some fruits contain moderate levels (139). 

However, it’s important to note that you shouldn’t consume too much manganese.

In excess, manganese is neurotoxic and can lead to manganism, a neurodegenerative disorder that causes dopaminergic neuronal death and symptoms similar to Parkinson's disease (138). 

So I definitely don’t recommend supplementing with large doses of manganese. 

The small amount of manganese in Optimal Antiox is fine though. It’s what I take. 

Fatty Acid Deficiencies That Can Cause Depression

15. Dihomo-Gamma-Linolenic Acid

Dihomo-Gamma-Linolenic Acid (DGLA) is an uncommon fatty acid.

It’s made in the body by the elongation of Gamma Linolenic Acid (GLA).

But small amounts can also be found in animal products (118). 

Last year, researchers found that people with depression are more likely to have low levels of DGLA levels (121). 

And increasing DGLA levels may lower the risk of developing depression (122). 

DGLA also has anti-inflammatory effects in the body (119). 

So it makes sense that levels would be low in depressed individuals because an increasing amount of evidence suggests that depression is a chronic inflammatory disease. 

DGLA can be increased by supplementing with dietary GLA (120). 

GLA can be found in Borage Oil, Evening Primrose Oil and Blackcurrant Seed Oil (123). 

16. Omega-3 Fatty Acids

Omega-3s fatty acids are the highest quality fats for the brain and increasing your intake of them is one of the most impactful actions you can take to fight depression.

Several studies have shown that depressive patients have lower levels of omega-3 fatty acids (1-3).

Researchers even conducted a meta-analysis of 14 studies, and they found that levels of omega-3 fatty acids were significantly lower in people with depression (4). 

They concluded that having a deficiency in omega-3 fatty acids is a “contributing factor to mood disorders” (5). 

It’s important to consume enough omega-3 fatty acids because they are essential fats that your body cannot produce itself.

Omega-3 fatty acids are found primarily in cold water fish, including:

• Salmon

• Black cod

• Sablefish

• Sardines

• Herring

These foods are included in my Free Grocery Shopping Guide for Optimal Mental Health.

Unfortunately, most people don't consume enough omega-3 fatty acids through their diet.

That’s why I recommend supplementing with krill oil, a special kind of fish oil that contains the essential omega-3 fatty acids. 

Plenty of research shows that omega-3 supplements are effective at treating clinical depression – just as effective as antidepressants drugs – because they lower inflammation in the brain (6-10). 

Amino Acid Deficiencies That Can Cause Depression

17. Carnitine

Carnitine is an amino acid found in nearly every cell of the body. It plays a vital role in the production of energy.

Researchers have found significantly lower levels of carnitine in patients with depression. And their low carnitine levels are associated with the severity of their depression (11-12, 174-175). 

Carnitine is mainly found in meat, fish and poultry.

But you can also supplement with it. 

I recommend Acetyl-L-Carnitine (ALCAR), an acetylated form of carnitine. It’s best supplemental form of carnitine. 

It’s often used as a natural brain booster because it increases alertness and provides support to brain cells.

But it’s also been shown to be very effective at quickly improving mood and treating depression (179-182). 

Six randomized clinical trials have demonstrated that ALCAR is better at treating depression than placebo (177). 

And two other studies found that ALCAR improved depressive symptoms in patients with chronic depression, and it was just as effective as antidepressant medications, but with less side effects (176, 178). 

ALCAR is included in the Optimal Brain supplement. 

Make sure you read this article to learn more about the remarkable benefits of ALCAR.

18. Glutamine

Glutamine is the most abundant amino acid in the body, suggesting that it’s very important.

It’s also one of the few amino acids that can directly cross the blood-brain barrier.

Glutamine is a conditionally essential amino acid, meaning the body can usually produce sufficient amounts of it. But sometimes the body uses up so much glutamine that it becomes necessary to obtain it from the diet or supplements, particularly during periods of illness, stress, inflammation and injuries (156-157). 

Researchers have found that depressed adults have reduced levels of glutamine (158). 

And glutamine deficiency has been shown to increase depressive-like behaviour in animals (159). 

But glutamine supplementation has “clear anti-depressive properties” and has been shown to improve mood (160-161). 

High levels of glutamine can be found in protein-rich foods such as beef, chicken, fish and eggs. Beets, cabbage, spinach, carrots, parsley, brussel sprouts, celery, kale and fermented foods like miso also contain some glutamine.

These foods are included in my Free Grocery Shopping Guide for Optimal Mental Health.

Glutamine is also available in supplement form. 

Glutamine was one of the main supplements that helped me heal my leaky gut, but I no longer need to take it regularly. 

19. Tryptophan

Tryptophan is an essential amino acid that cannot be produced by the body. It must be consumed through diet or by taking supplements. 

Some healthy foods that contain tryptophan include bananas, chicken, turkey and dark chocolate (140). 

Tryptophan helps produce the neurotransmitter serotonin. It’s converted to 5-hydroxytryptophan (5-HTP) in the brain, which then produces serotonin (141-142). 

Researchers have found that depressed patients have significantly lower levels of tryptophan in their blood than healthy control subjects (143-144). 

Studies also show that depressed patients have a decreased ratio of tryptophan to neutral amino acids in their blood. This suggests that tryptophan availability to the brain is likely reduced in depressed patients (145-146). 

Personally, supplementing with tryptophan never helped me. In fact, it always seemed to make me worse. It gave me asthma and acne and increased my depression.  

This is because depressed patients sometimes have problems creating serotonin from tryptophan. Instead, they create other metabolites from tryptophan, such as quinolinic acid, which can be toxic. For depressed patients like me, tryptophan supplementation won’t help, and may actually make their depression worse (150-151). 

However, some people do see their mood improve when they increase their intake of tryptophan. So it shouldn’t be completely disregarded. 

There are studies that show that consuming a high tryptophan diet and consuming additional dietary tryptophan can increase mood and lead to significantly less depressive symptoms (152-154). 

So supplementing with tryptophan is worth a shot if you’re struggling with depression and haven’t tried it yet. Just be aware of possible side effects. 

If you want, you can also try supplementing with 5-HTP instead of tryptophan. 5-HTP is the direct precursor to serotonin. 

5-HTP is included in this supplement. 

20. Glutathione

Glutathione is a small peptide made up of 3 important amino acids – glutamic acid, cysteine and glycine – each of which have several important roles in the human body.

Glutathione is found in the food supply and within the human body, where it acts as an antioxidant. It is used by every cell in the body.

It’s technically not an “essential nutrient” because the body can create it.

However, it’s still very important, and a glutathione deficiency leads to increased susceptibility to oxidative stress, which is thought to be involved in a number of diseases, including depression.

Studies show that patients with depression have significantly lower levels of glutathione. And the lower a person’s glutathione levels, the more depressed they are likely to be (162-164). 

Some practitioners and researchers have found that increasing glutathione intake and levels can successfully treat depression (165). 

Glutathione is also able to prevent behavioural depression in animals (166). 

It’s important to note that standard glutathione supplements are not very effective at increasing glutathione levels because they are not well absorbed by the body.

N-acetyl-cysteine (NAC) is a tried-and-true way of increasing glutathione levels because it’s the direct precursor to glutathione. 

Garlic, asparagus, and cruciferous vegetables, such as broccoli and kale, can also help boost glutathione levels, but NAC supplements are more powerful. 

Other supplements that have been shown to help increase and maintain optimal glutathione levels include Selenium, Alpha Lipoic Acid, and S-adenosyl-methionine (Sam-E). 

Enjoy This Article? You Might Also Like My FREE Food Guide for Optimal Brain and Mental Health!

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Live Optimally,

Jordan Fallis

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References:

(1) https://www.ncbi.nlm.nih.gov/pubmed/20452573

(2) https://www.ncbi.nlm.nih.gov/pubmed/16741195

(3) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4369545/

(4) https://www.ncbi.nlm.nih.gov/pubmed/20452573

(5) https://www.ncbi.nlm.nih.gov/pubmed/16741195

(6) https://www.ncbi.nlm.nih.gov/pubmed/24805797

(7) https://www.ncbi.nlm.nih.gov/pubmed/20586692

(8) https://www.ncbi.nlm.nih.gov/pubmed/20439549

(9) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3976923/

(10) https://examine.com/supplements/fish-oil/

(11) https://www.ncbi.nlm.nih.gov/pubmed/24611884

(12) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5470074/

(13) https://examine.com/suhttps://examine.com/supplements/vitamin-b12/plements/vitamin-b12/

(14) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2781043/

(15) https://www.ncbi.nlm.nih.gov/pubmed/10784463

(16) https://examine.com/supplements/vitamin-b12/

(17) https://wellnessmama.com/36091/vitamin-b12-deficiency/

(18) https://www.ncbi.nlm.nih.gov/pubmed/22276208

(19) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2781043/

(20) https://www.ncbi.nlm.nih.gov/pubmed/10784463

(21) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3262813/

(22) https://www.ncbi.nlm.nih.gov/pubmed/24339839

(23) http://www.ncbi.nlm.nih.gov/pubmed/24339839

(24) http://www.ncbi.nlm.nih.gov/pubmed/21771745

(25) https://www.ncbi.nlm.nih.gov/pubmed/19543765

(26) https://goo.gl/mzJn79

(27) https://www.ncbi.nlm.nih.gov/pubmed/27750060

(28) https://www.ncbi.nlm.nih.gov/pubmed/23377209

(29) https://www.ncbi.nlm.nih.gov/pubmed/10888476

(30) https://www.ncbi.nlm.nih.gov/pubmed/22191178

(31) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4011048/

(32) https://www.sciencedaily.com/releases/2015/02/150225094109.htm

(33) https://www.ncbi.nlm.nih.gov/pubmed/9011759

(34) https://examine.com/supplements/vitamin-d/

(35) https://examine.com/supplements/vitamin-d/

(36) https://www.ncbi.nlm.nih.gov/pubmed/28068285

(37) https://goo.gl/EXPCRN

(38) https://www.ncbi.nlm.nih.gov/pubmed/24108469

(39) http://www.tandfonline.com/doi/abs/10.1080/00048670802534408

(40) http://www.ncbi.nlm.nih.gov/pubmed/10746516

(41) http://www.ncbi.nlm.nih.gov/pubmed/9861593

(42) https://www.ncbi.nlm.nih.gov/pubmed/27807012

(43) https://www.ncbi.nlm.nih.gov/pubmed/25748766

(44) https://www.ncbi.nlm.nih.gov/pubmed/2067759

(45) https://www.ncbi.nlm.nih.gov/pubmed/19271419

(46) https://www.ncbi.nlm.nih.gov/pubmed/1672392

(47) https://www.ncbi.nlm.nih.gov/pubmed/23950577

(48) https://www.ncbi.nlm.nih.gov/pubmed/16542786

(49) https://www.ncbi.nlm.nih.gov/pubmed/19780403

(50) https://www.ncbi.nlm.nih.gov/pubmed/18825946

(51) https://www.ncbi.nlm.nih.gov/pubmed/5314166

(52) https://www.ncbi.nlm.nih.gov/pubmed/14769778

(53) https://www.ncbi.nlm.nih.gov/pubmed/17522618

(54) https://www.ncbi.nlm.nih.gov/pubmed/12493090

(55) https://www.ncbi.nlm.nih.gov/pubmed/10967371?dopt=Abstract

(56) https://www.ncbi.nlm.nih.gov/pubmed/15671130

(57) https://www.ncbi.nlm.nih.gov/pubmed/1974941

(58) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1810582/

(59) http://www.ncbi.nlm.nih.gov/pubmed/21771745

(60) https://www.ncbi.nlm.nih.gov/pubmed/18950248

(61) https://www.ncbi.nlm.nih.gov/pubmed/19796883

(62) https://www.ncbi.nlm.nih.gov/pubmed/23212058

(63) http://www.ncbi.nlm.nih.gov/pubmed/22664333

(64) http://www.ncbi.nlm.nih.gov/pubmed/21939673

(65) http://www.ncbi.nlm.nih.gov/pubmed/22673824

(66) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3868572/

(67) https://www.ncbi.nlm.nih.gov/pubmed/20689416

(68) https://www.ncbi.nlm.nih.gov/pubmed/18655800

(69) http://www.ncbi.nlm.nih.gov/pubmed/15145706

(70) http://www.ncbi.nlm.nih.gov/pubmed/18766297

(71) http://www.ncbi.nlm.nih.gov/pubmed/24621065

(72) http://www.sciencedirect.com/science/article/

(73) https://www.ncbi.nlm.nih.gov/pubmed/21798601

(74) https://www.ncbi.nlm.nih.gov/pubmed/24130605

(75) https://www.ncbi.nlm.nih.gov/pubmed/16491668

(76) https://www.ncbi.nlm.nih.gov/pubmed/20689416

(77) https://www.ncbi.nlm.nih.gov/pubmed/21798601

(78) https://www.ncbi.nlm.nih.gov/pubmed/18191237

(79) http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3022308/

(80) http://www.ncbi.nlm.nih.gov/pubmed/24621065

(81) https://www.ncbi.nlm.nih.gov/pubmed/20013161

(82) https://www.ncbi.nlm.nih.gov/pubmed/20493532

(83) https://www.ncbi.nlm.nih.gov/pubmed/9276075

(84) https://www.ncbi.nlm.nih.gov/pubmed/8071476

(85) https://www.ncbi.nlm.nih.gov/pubmed/15479988

(86) http://lpi.oregonstate.edu/mic/vitamins/vitamin-B6

(87) http://www.ncbi.nlm.nih.gov/pubmed/15479988

(88) https://www.ncbi.nlm.nih.gov/pubmed/23550784

(89) http://www.ncbi.nlm.nih.gov/pubmed/26648330

(90) http://www.ncbi.nlm.nih.gov/pubmed/21771745

(91) http://www.ncbi.nlm.nih.gov/pubmed/22081620

(92) https://www.ncbi.nlm.nih.gov/pubmed/16815556

(93) http://www.ncbi.nlm.nih.gov/pubmed/21771745

(94) http://www.ncbi.nlm.nih.gov/pubmed/1578091

(95) https://www.ncbi.nlm.nih.gov/pubmed/20688474

(96) http://www.ncbi.nlm.nih.gov/pubmed/26353411

(97) http://www.ncbi.nlm.nih.gov/pubmed/24511708

(98) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3599706/

(99) http://www.ncbi.nlm.nih.gov/pubmed/12208645

(100) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4376513/

(101) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4376513/

(102) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3599706/

(103) https://www.ncbi.nlm.nih.gov/pubmed/12208645

(104) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4376513/

(105) https://www.ncbi.nlm.nih.gov/pubmed/25835231

(106) https://www.ncbi.nlm.nih.gov/pubmed/23106783

(107) http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3325330/

(108) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4376513/

(109) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3599706/

(110) https://www.ncbi.nlm.nhttps://www.ncbi.nlm.nih.gov/pubmed/20301015h.gov/pubmed/20301015

(111) https://www.ncbi.nlm.nih.gov/pubmed/20010493

(112) https://www.ncbi.nlm.nih.gov/pubmed/22467846

(113) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4414830/

(114) https://www.ncbi.nlm.nih.gov/pubmed/25603363

(115) https://www.ncbi.nlm.nih.gov/pubmed/23313551

(116) https://www.ncbi.nlm.nih.gov/pubmed/23928691

(117) https://www.ncbi.nlm.nih.gov/pubmed/24525646

(118) https://en.wikipedia.org/wiki/Dihomo-%CE%B3-linolenic_acid

(119) https://en.wikipedia.org/wiki/Dihomo-%CE%B3-linolenic_acid

(120) https://en.wikipedia.org/wiki/Dihomo-%CE%B3-linolenic_acid

(121) https://www.ncbi.nlm.nih.gov/pubmed/28235735

(122) https://www.ncbi.nlm.nih.gov/pubmed/28235735

(123) https://academic.oup.com/jn/article/128/9/1411/4722487

(124) https://en.wikipedia.org/wiki/Inositol

(125) https://www.ncbi.nlm.nih.gov/pubmed/7416064

(126) https://en.wikipedia.org/wiki/Inositol

(127) http://onlinelibrary.wiley.com/doi/10.1002/mrm.21709/full

(128) https://www.ncbi.nlm.nih.gov/pubmed/15953489

(129) https://www.ncbi.nlm.nih.gov/pubmed/9247405

(130) http://www.ncbi.nlm.nih.gov/pubmed/24424706

(131) http://onlinelibrary.wiley.com/doi/10.1002/hup.1241/abstract

(132) https://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0062698/

(133) https://www.ncbi.nlm.nih.gov/pubmed/22031267

(134) https://www.ncbi.nlm.nih.gov/pubmed/7726322

(135) https://www.ncbi.nlm.nih.gov/pubmed/25712638

(136) https://www.ncbi.nlm.nih.gov/pubmed/25171019

(137) https://www.ncbi.nlm.nih.gov/pubmed/28110159

(138) https://en.wikipedia.org/wiki/Manganese#Biological_role

(139) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4516557/

(140) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2908021/

(141) https://www.ncbi.nlm.nih.gov/pubmed/21071157

(142) https://www.ncbi.nlm.nih.gov/pubmed/28118532

(143) https://www.ncbi.nlm.nih.gov/pubmed/2521647

(144) https://www.sciencedirect.com/science/article/pii/016517819390102M

(145) https://www.ncbi.nlm.nih.gov/pubmed/2521647

(146) https://jamanetwork.com/journals/jamapsychiatry/article-abstract/492559

(147) https://goo.gl/5rBaMM

(148) https://jamanetwork.com/journals/jamapsychiatry/article-abstract/492559

(149) https://www.ncbi.nlm.nih.gov/pubmed/29109914

(150) https://www.ncbi.nlm.nih.gov/pubmed/26654774

(151) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4955923/

(152) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4393508/

(153) https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0447.2011.01706.x

(154) https://www.ncbi.nlm.nih.gov/pubmed/11869656

(155) https://www.ncbi.nlm.nih.gov/pubmed/8775762

(156) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3425386/

(157) https://www.ncbi.nlm.nih.gov/pubmed/2668703

(158) https://www.ncbi.nlm.nih.gov/pubmed/17283286

(159) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3633711/

(160) https://www.ncbi.nlm.nih.gov/pubmed/8289407

(161) https://www.ncbi.nlm.nih.gov/pubmed/1020692

(162) http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3964749/

(163) http://www.ncbi.nlm.nih.gov/pubmed/21552194

(164) https://academic.oup.com/ijnp/article/14/1/123/657694

(165) https://goo.gl/hcyoey

(166) https://www.ncbi.nlm.nih.gov/pubmed/7972287

(167) http://pubs.niaaa.nih.gov/publications/arh27-2/134-142.htm

(168) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3521461/

(169) https://goo.gl/CKdRbW

(170) https://www.ncbi.nlm.nih.gov/pubmed/26984349

(171) https://www.ncbi.nlm.nih.gov/pubmed/26984349

(172) https://goo.gl/7xi241

(173) https://goo.gl/7xi241

(174) https://www.ncbi.nlm.nih.gov/pubmed/28670223

(175) https://www.ncbi.nlm.nih.gov/pubmed/23574341

(176) https://www.ncbi.nlm.nih.gov/pubmed/16316746

(177) https://www.ncbi.nlm.nih.gov/pubmed/24607292

(178) https://www.ncbi.nlm.nih.gov/pubmed/24607292

(179) https://www.ncbi.nlm.nih.gov/pubmed/18491985

(180) https://www.ncbi.nlm.nih.gov/pubmed/23382250

(181) https://www.ncbi.nlm.nih.gov/pubmed/28670223

(182) https://www.ncbi.nlm.nih.gov/pubmed/15591014

(183) https://www.ncbi.nlm.nih.gov/pubmed/28189077

(184) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3680022/

(185) https://www.ncbi.nlm.nih.gov/pubmed/29603506

(186) https://www.ncbi.nlm.nih.gov/pubmed/17063146

(187) https://www.ncbi.nlm.nih.gov/pubmed/15671224/

(188) https://www.ncbi.nlm.nih.gov/pubmed/29363366

(189) https://www.ncbi.nlm.nih.gov/pubmed/29307706

(190) https://www.ncbi.nlm.nih.gov/pubmed/22286844

(191) https://www.ncbi.nlm.nih.gov/pubmed/18463429

(192) https://www.ncbi.nlm.nih.gov/pubmed/18463429

(193) https://www.ncbi.nlm.nih.gov/pubmed/1873372

(194) https://www.ncbi.nlm.nih.gov/pubmed/16184071

(195) https://www.ncbi.nlm.nih.gov/pubmed/16184071

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How to Actually Heal and Repair a Leaky Blood-Brain Barrier

“Blood-brain barrier leakage means that the brain has lost its protective means, the stability of brain cells is disrupted and the environment in which nerve cells interact becomes ill-conditioned. These mechanisms could eventually lead to dysfunction in the brain.”

— Dr. Walter H. Backes, Maastricht University Medical Center

A healthy, properly-functioning blood-brain barrier is absolutely critical for optimal brain and mental health.

The blood-brain barrier is a protective shield that surrounds your brain.

It acts as a gatekeeper and filter, allowing beneficial nutrients to cross over into your brain, and keeping unwanted molecules out of your brain.  

But in his book Why Isn’t My Brain Working, Dr. Datis Kharrazian explains that the blood-brain barrier can break down and become “leaky”.

This allows harmful substances to enter your brain, contributing to brain inflammation, which has been shown to cause cognitive problems and mental illness (92, 110-111).

Hyper-permeability of the blood-brain barrier and neuroinflammation have been linked to a number of different brain and mental health problems and symptoms, including depression, anxiety, cognitive impairment, brain fog, Alzheimer's disease, Parkinson’s disease, headaches, migraines, chronic fatigue syndrome, attention deficit hyperactivity disorder (ADHD) and schizophrenia (101-109). 

A number of factors contribute to “leaky brain”, including (93-100):

• Systemic inflammation

• Oxidative stress

• Autoimmune disease

• Chronic psychological stress

• Infections

• Head trauma

• Poor diet and food additives

• Disrupted circadian rhythm

• Intestinal permeability (leaky gut syndrome)

• Excess alcohol consumption

• Environmental toxins and heavy metals

• High blood sugar

• Poor brain blood flow

Needless to say, these things are very common today, so a lot of people likely have a leaky blood-brain barrier.

The good news is that even though the blood-brain barrier can break down and become leaky, it can also be fixed!

You can repair it if you give it what it needs to heal. 

After living in a moldy home and suffering multiple concussions, my brain and its barrier were in rough shape.

Since then, I’ve searched far and wide for solutions that could strengthen it.

Here are 24 strategies that have been shown to support and repair the blood brain barrier.

Many of them have helped me.

Together, they can help you reduce neuroinflammation, heal your “leaky brain,” and overcome your brain and mental health challenges. 

1. Avoid Gluten

Avoiding gluten is necessary for optimal brain and mental health.

I’m convinced that if you struggle with a chronic brain or mental illness, you should follow a strict gluten-free diet for at least 30 days and see how you feel.

You'll likely feel better.

There’s one main reason I recommend this…

Gluten has been shown to elevate “zonulin”.

Zonulin is a protein in your body that increases the permeability of the intestinal barrier and disrupts the blood-brain barrier (48).

Researchers have found that gluten clearly increases zonulin and contributes to “leaky gut” and “leaky brain”, resulting in neuroinflammation and altered cognitive function (49, 50).

Gluten sensitivity can also create visible changes to the white matter in your brain, according to research in The Lancet Neurology (51).

Yet unfortunately, the myth continues to spread that only people with celiac disease need to avoid gluten-containing food.

That’s simply not true.  

Dr. David Perlmutter, MD, author of Grain Brain and Brain Maker, explains:

“Not only is there increased gut permeability when the gut is exposed to gliadin, a protein found in gluten, but in fact the blood brain barrier also becomes more permeable in response to gliadin exposure.”

You should also determine if you have other food sensitivities and remove those foods from your diet as well. A lot of people are sensitive to dairy, along with gluten. I can't tolerate gluten, dairy and egg whites and have to avoid them completely. 

2. Heal Your Gut (and Increase the Good Bacteria Within It)

There is a clear connection between your brain and digestive system.

I’ve discussed this before.

Whatever happens in your gut directly impacts your brain function.

Because of this connection, it’s critical to address gut issues in order to heal a leaky brain.

Researchers have studied mice that are “germ free”.

“Germ-free” mice means that the mice don’t have any bacteria in their intestines.

And what did the researchers find?

They found that these germ-free mice had very leaky blood-brain barriers (56).

But when these germ-free mice received a fecal transfer, where researchers introduced bacteria into their intestines, the permeability of their blood-brain barriers decreased significantly (57).

So it’s becoming increasing clear that our gut bacteria directly affect the health of our blood-brain barrier.

And manipulating your gut bacteria, and increasing the amount of good bacteria in your digestive system, can help improve the integrity of your blood-brain barrier and heal your leaky brain. 

“Given that the microbiome composition and diversity change over time, it is tempting to speculate that the blood-brain barrier integrity also may fluctuate depending on the microbiome.”

— Dr. Sven Pettersson, MD, PhD

In my experience, this is true, as my brain functions much better when I take care of my gut. 

Eating more prebiotic fiber and resistant starch, taking a high-quality probiotic, and eating fermented foods on a regular basis can increase the amount of good bacteria in your gut.

I take Optimal Biotics every day.

You should check out my previous article about gut health to learn more.

And if you have depression or anxiety, taking these probiotics can help.

3. Drink Coffee

Coffee and caffeine are excellent for brain health. There is lots of research showing they are very healthy and can be protective against dementia.

One possible explanation for this is that caffeine supports the blood-brain barrier.

Studies show that caffeine protects against Alzheimer's disease and Parkinson’s disease by keeping the blood-brain barrier intact, and protecting against blood-brain barrier dysfunction and leakage (32).

In one study, researchers found that caffeine blocks the disruption of the blood-brain barrier, concluding that caffeine is “useful in the treatment Alzheimer's disease” (33, 34).

Another study showed that caffeine can protect against Parkinson’s disease and neurodegeneration by stabilizing the blood-brain barrier (35).

I used to not be able to handle any coffee and caffeine at all. But now that I have my anxiety under control, I can handle it just fine. I drink one cup of coffee most mornings.

Coffee and caffeine can disrupt sleep though, so make sure you don’t drink it later in the day. I have my last cup sometime between 10 in the morning and noon. If I have it any later than that, it disrupts my sleep.

There are also additional brain health benefits when you consume the whole coffee fruit, instead of just coffee or pure caffeine. 

Usually, coffee beans are extracted from the whole coffee fruit for roasting. And then the surrounding coffee fruit is then thrown away. 

But this is a problem because the coffee fruit contains several healthy compounds not found in coffee beans themselves.

And researchers have now discovered that ingesting whole coffee fruit concentrate significantly increases brain function.

That’s why I included coffee fruit concentrate in the Optimal Brain supplement. 

4. Sulforaphane

Sulforaphane is a phytochemical found in cruciferous vegetables such as broccoli, Brussels sprouts or cabbages.

It has potent antioxidant and anti-inflammatory actions.

It’s quite similar to curcumin.

Numerous studies have shown that sulforaphane can prevent the breakdown of the blood-brain barrier, reduce permeability of the blood-brain barrier, and improve cognitive function after stroke and traumatic brain injuries (87-91).

You can take sulforaphane in supplement form.

If you decide to take it as a supplement, make sure you get the "myrosinase-activated" form.

Myrosinase is the enzyme in broccoli that helps metabolize sulforaphane.

I once bought a supplement that didn't contain myrosinase and had to return it, and then ended up buying another one instead.

5. Avoid Alcohol

Not surprisingly, alcohol and acetaldehyde – a byproduct of alcohol metabolism – can weaken and damage the blood-brain barrier, and contribute to leaky brain.  

Researchers have found that the oxidative stress that results from excess alcohol consumption leads to blood-brain barrier dysfunction (58, 59).

And this can then lead to neuroinflammation (60).

There are ways to protect your brain from alcohol, but you’re better off avoiding it completely or significantly reducing your consumption if you’re trying to heal.

Some types of alcohol are better than others. You can learn more about the best types of alcohol here. 

 6. Resveratrol or Pterostilbene

Resveratrol is a beneficial antioxidant and anti-inflammatory compound found in grapes, red wine, raspberries and dark chocolate.

It’s known to help prevent the development of neurodegenerative diseases.

And scientists are starting to understand why.

Resveratrol can increase BDNF and support your mitochondria.

And according to cutting-edge research, it can also protect and support your blood-brain barrier.

In a recent study, researchers gave resveratrol to Alzheimer’s patients and it restored the integrity of their blood-brain barriers.

Because of this, there was a reduction in brain inflammation, which slowed down cognitive decline in the patients (38, 39). 

Numerous other studies have found that resveratrol:

• Significantly reduces the breakage, damage and dysfunction of the blood-brain barrier;

• Defends and protects the blood-brain barrier; and

• Improves and maintains the overall integrity of the blood-brain barrier (36-37, 40-43).

“Resveratrol imposes a kind of crowd control at the border of the brain. The agent seems to shut out unwanted immune molecules that can exacerbate brain inflammation and kill neurons.”

— Dr. Charbel Moussa, MD, PhD

Because of resveratrol’s ability to stabilize the blood-brain barrier and protect against neuroinflammation, researchers also believe it may reduce the clinical severity of multiple sclerosis (44).

Lastly, resveratrol has been shown to protects against oxidized LDL-induced breakage of the blood–brain barrier (45, 46).

So clearly resveratrol is great for our blood-brain barriers.

If resveratrol was a pharaceutical drug, we would definitely be hearing more about it. But natural compounds cannot be patented, so we don't.  

Pterostilbene, a compound found in blueberries, is very similar to resveratrol.

It’s also been shown to protect the blood-brain barrier by reducing oxidative stress, and it’s apparently better absorbed than resveratrol. In fact, it’s commonly referred to as a “better resveratrol” (47).

I tried pterostilbene and it was beneficial, but I didn’t find it any more helpful than resveratrol, so I’ve decided to just stick with resveratrol considering it has significantly more research to back it up. 

Resveratrol is included in this supplement.

7. Reduce Stress

I highly recommend you try to do something every day to manage and reduce your stress.

Research suggests that acute stress damages the blood-brain barrier (52).

And extreme stress has been shown to increase inflammation and increase the permeability of the blood-brain barrier (53-55).

But normalizing your stress levels can help the blood-brain barrier repair itself.

The most effective way to significantly reduce your stress and anxiety is neurofeedback. It’s advanced, guided meditation and I previously wrote about my experience with it here.

If you can’t access neurofeedback, taking up a daily meditation practice is an excellent idea.

I’m a big fan of the Muse headband. It’s a device that guides you while you meditation. Similar to neurofeedback, it gives you real-time feedback while you meditate. I wrote an entire review about it here, and you can get the device through the Muse website. 

Regular massage, acupuncture, eye movement desensitization and reprocessing (EMDR), emotional freedom techniques (EFT), heart-rate variability (HRV) training, and an acupressure mat have helped me a lot as well.

Lying on an acupressure mat while using my EmWave2 for just 10 minutes relaxes my entire body and mind. I do this at night before bed.

Some nutrients and herbs that can help you with stress include zinc, magnesium, ashwagandha and phosphatidylserine.

This anti-anxiety supplement also includes a number of natural compounds that have helped me manage my stress over the years.

8. Omega-3 Fatty Acids

Omega-3 fatty acids are essential fats that your body cannot produce itself. So you need to get them from diet or supplements, as they are absolutely necessary for the normal functioning of your brain and nervous system.

Omega-3 fatty acids can support your mitochondria, increase your BDNF levels, and help you overcome addiction and withdrawal.

But they can also support your blood-brain barrier.

Researchers have found that omega-3 fatty acids can: 

• Reduce damage to the blood-brain barrier after stoke;

• Limit blood-brain barrier disruption after traumatic brain injury; and

• Benefit people with multiple sclerosis by indirectly reducing disruption of their blood-brain barriers (76-78).

Wild fish is the best food source of omega-3 fatty acids, but unfortunately, most people don't consume enough omega-3 fatty acids through their diet.

That’s why I recommend supplementing with krill oil, a special kind of fish oil that contains the essential omega-3 fatty acids.

Krill oil also contains astaxanthin, a powerful, naturally occurring carotenoid.

Astaxanthin has also been shown to decrease inflammation and protect the blood-brain barrier (118-119).

9. Sleep and Melatonin

Deep sleep is necessary for the optimal functioning of your blood-brain barrier.

My sleep used to be terrible and it was one of main factors that contributed to my poor brain and mental health. And then my poor brain and mental health would make my sleep worse. So it was a vicious cycle.

Sleep restriction has been shown to impair the functioning of the blood-brain barrier and increase its permeability (84).

So you should really try to get at least 7 hours of high-quality, restorative sleep every night.

Supplementing with melatonin can also help.

Melatonin is a hormone released by your pineal gland, a small gland in your brain. Melatonin helps control your sleep and wake cycles (circadian rhythm).

Adequate levels of melatonin are necessary to fall asleep quickly and sleep deeply throughout the night.

Research also shows that melatonin can stabilize the blood-brain barrier and prevent damage caused by traumatic brain injury (85, 86).

This sleep supplement contains magnesium and a number of other natural compounds that I’ve used over the years to promote the production of melatonin.

But I work with my clients so that they can naturally produce more melatonin and maximize the quality of their sleep without so many supplements. We have free online workshop that talks about how you can work with us. You can register for the workshop here.

10. Berberine

Berberine is an alkaloid extracted from various plants. 

It has anti-inflammatory, neuroprotective and possibly antidepressant effects. It can also improve intestinal health and lower cholesterol.

And several studies have shown that it can decrease the permeability of the blood-brain barrier and reduce brain damage after traumatic brain injury. It does this by suppressing inflammation (23-26). 

I’ve experimented with varying dosages of berberine. I personally didn’t notice any profound brain and mental health benefits, but I have heard good things about berberine from other people. 

11. Avoid Environmental Mold and Mycotoxins

Environmental mold can be a serious problem for some people.

Unfortunately, most people aren’t even aware that mold is in their home or workplace and affecting their brain function.

In water-damaged buildings, mycotoxins (toxic metabolites produced by mold) are released into the air.

If you’re genetically susceptible, they can wreak havoc on your brain, and your cognitive function and mental health can deteriorate for no apparent reason.

One way mold and mycotoxins can disrupt brain function is by causing “leaky brain.”

Researchers have discovered that mycotoxins can clearly reduce the integrity of the blood-brain barrier (62).

They’ve also concluded that exposure to mycotoxins in an indoor environment can cause neurological damage. One way it does this is by breaking down the blood-brain barrier (61).

Several other studies have found that mycotoxins increase the permeability of blood-brain barrier and disrupt the functioning of the nervous system (63-66).

I lived in a moldy house for more than a year, and my blood-brain barrier likely became significantly leaky during that time, as my brain and mental health deteriorated. I also suffered a terrible concussion while living in that house, making my brain even more permeable. It took a while to get back to normal.

Today I use an air filter in my apartment to protect myself from any mold. It removes any mold spores and smoke that may be in the air.

Mycotoxins aren’t just in your environment though. Low amounts of mycotoxins are also often found in some seemingly healthy foods, such as tea, nuts, coffee and chocolate. I recommend finding the freshest, highest-quality, organic versions of these foods.

If I'm exposed to mold or their toxins, I supplement with activated charcoal or bentonite clay. Activated charcoal and bentonite clay are potent natural treatments that can trap toxins and chemicals, allowing them to be flushed out of your body.

12. B Vitamins

Several B vitamins have been shown to support the blood-brain barrier and help heal leaky brain.

Vitamin B1 (thiamine) deficiency disrupts the blood-brain barrier, and supplementing with Vitamin B1 restores its integrity (80-81).

Researchers have also found that vitamins B12, B6, and B9 (folate) can restore the integrity of the blood-brain barrier in adults that have elevated homocysteine levels and mild cognitive impairment. Homocysteine is an inflammatory compound that can contribute to blood-brain barrier breakdown at high levels, and the B vitamins normalize homocysteine levels (82-83).

A number of B vitamins are included in this supplement.

13. Magnesium

Magnesium is a vital mineral that plays a key role in more than 300 biochemical reactions in your body.

It impacts your neurotransmitters and hormones, both of which can significantly impact your mood and brain function.

Magnesium is one of the three nutrients that I think everyone should be taking for their brain, because most people are deficient nowadays.

Research shows that it can support your mitochondria, protect your brain from alcohol, increase your BDNF levels, and help you overcome addiction and withdrawal.

And there is plenty of research showing that it can protect and support your blood-brain barrier as well.

Multiple studies have found that magnesium protects the blood-brain barrier, prevents its disruption, and significantly reduces hyperpermeability of the blood-brain barrier (27, 28, 31).

One study found that it decreases blood-brain barrier permeability by 41% (29).

Magnesium’s protective effect against blood-brain barrier hyperpermeability has also been seen after traumatic brain injury (30).

Foods that contain magnesium include spinach, chard, pumpkin seeds, almonds, avocado, dark chocolate and bananas. These foods are included in my Free Grocery Shopping Guide for Optimal Brain Health.

But supplementation and taking Epsom salt baths is still necessary for most people because magnesium is rapidly used up during times of stress and certain psychiatric drugs can deplete magnesium.

14. Alpha Lipoic Acid (ALA)

Alpha Lipoic Acid (ALA) is an antioxidant produced by your body.

It can also be taken as a supplement.

ALA is fat soluble and can easily cross the blood-brain barrier to protect your brain (1-3).

As I’ve discussed before, it can protect your brain from alcohol and support the mitochondria in your brain.

But not only can it cross your blood-brain barrier and support your brain; it can also support your blood-brain barrier itself.

Studies show that ALA has neuroprotective effects, and it maintains the integrity of the blood-brain barrier by reducing oxidative stress (4-5)

Researchers also point out that its anti-inflammatory and antioxidant effects can stabilize the blood-brain barrier. This makes it an “attractive therapeutic agent for the treatment” of multiple sclerosis and traumatic brain injury (6-8).

ALA is included in the Optimal Antiox supplement.

15. Acetyl-Carnitine (ALCAR)

Acetyl-L-carnitine (ALCAR) is an acetylated form of the amino acid carnitine.  

It’s been shown to have neuroprotective and cognitive-enhancing effects. It’s often used as a natural brain booster because it increases alertness and provides support to brain cells.  

ALCAR has also been shown to be very effective at alleviating chronic fatigue and improving mood. It helps reverse neurological decline and supports mitochondria function as well. 

It does so much, so not surprisingly, researchers have also found that ALCAR helps repair the blood-brain barrier by reversing mitochondria decay caused by oxidative damage (122).

I find that ALCAR personally gives me a big boost in mental energy and cognitive function.  

That’s why it’s included in the Optimal Brain supplement. 

Make sure you read this article to learn more about the remarkable benefits of ALCAR.

16. Curcumin

Curcumin is the most heavily researched compound within turmeric, the spice that gives curry its yellow colour.

Curcumin is one of my favourite compounds for the brain. It can lower your cortisol levels and increase your BDNF levels.

But it can also:

• Reduce the disruption and hyperpermeability of the blood-brain barrier;

• Reverse blood-brain barrier dysfunction; and

• Improve the overall integrity of the blood-brain barrier (13-18).

Studies have also shown that curcumin can prevent blood-brain barrier damage and reduce the permeability of the blood-brain barrier caused by oxygen and glucose deprivation (20-22).

Researchers believe it can do all of this because it significantly reduces inflammation and oxidative stress (19).

Curcumin can be found in this supplement.

17. Vitamin D

Vitamin D is a fat-soluble vitamin that your skin synthesizes when it’s exposed to the sun.

Every tissue in your body has vitamin D receptors, including the brain, heart, muscles, and immune system.

This means your entire body needs it to function properly and a deficiency can lead to costly physiological and psychological consequences.

Researchers have found that Vitamin D can prevent the disruption of the blood-brain barrier, mainly by reducing inflammation (72, 73).

In patients with multiple sclerosis, Vitamin D has been shown to protect endothelial cells and reduce blood-brain barrier disruption (74).

And one study found that intranasal administration of vitamin D reduces blood–brain barrier disruption (75).

I personally take a Vitamin D3 supplement to make sure my Vitamin D levels are optimal.

It's important to test and monitor your Vitamin D levels before and after supplementing with it.

18. Citicoline or Alpha GPC

Choline is an essential nutrient that most people don’t consume enough of because very few foods in the Western diet contain it.

Citicoline (also known as CDP-Choline) is the most bioavailable supplemental form of choline.

As I’ve discussed before, it can help you overcome brain fog and addiction.

But it’s also been shown to significantly decrease the disruption and breakdown of the blood-brain barrier after traumatic brain injury (11-12).

And after brain ischemia, Citicoline significantly reduces blood-brain barrier dysfunction (10).

I personally take Citicoline every day.

It helps me a lot because I’ve had multiple concussions. 

Make sure you read this article to learn more about the remarkable benefits of Citicoline.

Alpha GPC is another excellent form of choline that has been shown to support the blood-brain barrier.

Researchers have found that it improves cognitive function by reversing the changes to the blood-brain barrier after a brain injury (9).

Make sure you read this article to learn more about the benefits of Alpha GPC, the optimal dosage, and the best way to take it.

You can find some choline in beef liver and egg yolks, but both Citicoline and Alpha GPC have much more noticeable and immediate effects.  

Both citicoline and Alpha GPC are included in the Optimal Brain supplement. 

19. Reduce Exposure to Electromagnetic Fields (EMFs)

“I have no doubt in my mind that, at the present time, the greatest polluting element in the Earth’s environment is the proliferation of electromagnetic fields.” - Dr. Robert Becker, Nobel Prize nominee and author of The Body Electric: Electromagnetism And The Foundation Of Life

An increasing amount of research is showing that radiofrequency electromagnetic fields emitted from Wi-Fi, laptops, and cellphones can negatively affect the brain and produce widespread neuropsychiatric effects including depression.

It’s an inconvenient truth that needs to be talked about, rather than downplayed, ignored and dismissed.

One way that radiofrequency EMFs may be causing neuropsychiatric effects is by contributing to a "leaky brain".  

Several studies have found that EMFs emitted from cellphones increase the permeability of the brain-blood barrier, and this increased permeability may lead to the accumulation of brain tissue damage and cognitive impairment (112-114). 

I encourage you to check out my other post about EMFs here. 

I'm still learning about how to manage and combat them, but here are some initial steps you can take:

• Get an EMF meter to determine your exposure. I use the Cornet ED88T. It's the best option that is currently available. It measures electric, magnetic and radiofrequency fields. It's like having three meters in one. You can get it here.

• Put your phone on airplane mode when you’re not using it and/or use a radiation-blocking phone case such as Safe Sleeve. I did a lot of research into radiation-blocking cases and Safe Sleeve is the best on the market. They are manufactured with materials that have been 3rd-party tested to block 99.9% of radiation coming off a cell phone.

• Turn off Wi-Fi at night while you’re sleeping.

• If you have a laptop, don’t touch it. Use a wired keyboard and wired mouse instead.

• Supplement with the herb Rhodiola. It has radioprotective effects (60-62). I previously wrote about it here.

This is just the tip of the iceberg. There are many other steps you can take, and I plan on writing more about this soon because it isn’t discussed enough.

This may seem like “woo-woo” but it’s a real issue. And I suspect it will eventually become one of the biggest issues of our time.

20. Lower Homocysteine

Homocysteine is an amino acid that is produced in the body as a result of methylation.

In healthy people, it’s properly metabolized and normal levels are maintained. 

But when homocysteine isn’t properly metabolized, it can build up inside the body and levels can become too high.

And that’s when homocysteine becomes dangerous and unhealthy. 

At high levels, homocysteine is inflammatory, and research shows it increases permeability of the blood-brain barrier (115).

You can check your homocysteine levels by ordering this blood test. 

If you test and find out your levels are high, check out this article for 16 ways to lower your homocysteine levels.

Normalizing homocysteine not only helps the brain recover from physical damage, but also reduces depression and cognitive decline.

21. Progesterone

Progesterone is a natural steroid and sex hormone involved in the menstrual cycle and pregnancy.  

It has a variety of important functions in the body, and even plays an important role in brain function.  

Research has found that progesterone supports the normal development of brain cells and protects them from damage. 

And one study shows that it reduces inflammation and can support the blood-brain barrier after brain injury (120).

In addition to its role as a natural hormone, progesterone can be taken as a medication, usually by women during menopause as part of their hormone replacement therapy. 

22. Increase Brain Blood Flow

Brain blood flow, or cerebral blood flow, refers to the blood supply that reaches your brain during a given period of time. 

Your brain needs almost 20% of the blood supply provided by each heartbeat.

A steady flow of blood brings oxygen, glucose and nutrients to the brain, and carries carbon dioxide, lactic acid, and other metabolic waste products away from the brain.

But when blood flow to the brain is impaired, problems can arise, including a leaky blood-brain barrier.

Research shows that lack of brain blood flow increases oxidative stress, damages the blood-brain barrier, and increases blood-brain barrier permeability (116-117).

Be sure to check out this post for 21 ways to increase blood flow to the brain.

23. Vagus Nerve Stimulation

The vagus nerve is the longest cranial nerve in your body and part of your parasympathetic “rest and digest” nervous system.

Research shows that stimulating the vagus nerve can decrease blood-brain barrier disruption.

In fact, researchers have found that vagus nerve stimulation can prevent the increase in blood-brain barrier permeability after a traumatic brain injury, and reduce it after a stroke (123-124).

So how do you stimulate your vagus nerve naturally?

I previously provided 13 ways to activate your vagus nerve in this post.

Deep breathing with the EmWave2 device is my favourite way. 

24. Intermittent Fasting

Fasting is another great way to strengthen your blood-brain barrier.

It allows your digestive system to take a break, and triggers a number of hormones that boost your body’s ability to repair itself.

Ghrelin, a hunger-stimulating hormone, signals to your body that it’s time to eat. And it increases when you are fasting.

Researchers have found that that ghrelin improves the integrity of the blood-brain barrier and reduces the breakdown of the blood-brain barrier after a traumatic brain injury (125).

As a result, fasting can help treat neurological conditions and lowers the risk of cognitive decline and neurodegenerative diseases such as Alzheimer’s disease and Parkinson’s disease.

This is why I personally eat all my food for the day within an 8-hour window, and then fast for the other 16 hours of the day.

You don’t need to go that long, but you should try to fast for at least 12 hours at a time.

The best way to get started is simply by eating dinner around 6, not eating anything after that before bed, and then eating a regular breakfast the next day.

That should give you about 12-14 hours of fasting time.

25. BONUS: Other Nutrients, Antioxidants and Herbs

Here are several other nutrients, antioxidants and herbs that have been demonstrated to support the blood-brain barrier.

I’ve decided to not write about these in-depth because there isn’t as much research to back them up.

That doesn’t mean they aren’t useful though. They have still helped me: 

• Vitamin C (67)

• Iodine (68)

• Selenium (69)

• Vitamin E (69)

• N-Acetyl-Cysteine (70)

• Ginseng (71)

• Inositol (79)

• Ursolic Acid (121)

Conclusion

The brain has a remarkable ability to heal itself, and this includes the barrier that protects it.

The above steps have been proven to help repair and support the blood brain barrier, and I’ve noticed the benefits of implementing them into my own life.

I hope they help you too!

Enjoy This Article? You Might Also Like My FREE Food Guide for Optimal Brain Health!

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Live Optimally,

Jordan Fallis

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References:

(1) http://www.berkeley.edu/news/media/releases/96legacy/releases.96/14316.html

(2) http://www.ncbi.nlm.nih.gov/pubmed/11854488

(3) http://www.ncbi.nlm.nih.gov/pubmed/11854529

(4) https://www.ncbi.nlm.nih.gov/pubmed/8958163

(5) https://www.ncbi.nlm.nih.gov/pubmed/19823933

(6) https://www.researchgate.net/publication/26240443_The_protective_effect_of_alpha_lipoic_acid_against_traumatic_brain_injury_in_rats

(7) https://www.researchgate.net/publication/6898853_Lipoic_Acid_Affects_Cellular_Migration_into_the_Central_Nervous_System_and_Stabilizes_Blood-Brain_Barrier_Integrity

(8) http://www.ncbi.nlm.nih.gov/pubmed/16888025

(9) https://www.ncbi.nlm.nih.gov/pubmed/25714975

(10) https://www.ncbi.nlm.nih.gov/pubmed/10561698

(11) https://www.ncbi.nlm.nih.gov/pubmed/12691414

(12) http://www.ncbi.nlm.nih.gov/pubmed/10701532

(13) http://www.sciencedirect.com/science/article/pii/S0022480416303638

(14) https://www.ncbi.nlm.nih.gov/pubmed/26686249

(15) https://www.researchgate.net/publication/307999386_Curcumin_attenuates_blood-brain_barrier_disruption_after_subarachnoid_hemorrhage_in_mice

(16) https://www.ncbi.nlm.nih.gov/pubmed/23494637

(17) http://www.fasebj.org/content/28/1_Supplement/1120.9

(18) http://search.bvsalud.org/ghl/resource/en/wpro-668812

(19) http://www.ncbi.nlm.nih.gov/pubmed/26708209

(20) https://www.ncbi.nlm.nih.gov/pubmed/17303117

(21) http://link.springer.com/article/10.1007/s12031-013-9989-4

(22) http://www.ncbi.nlm.nih.gov/pubmed/23494637

(23) https://www.ncbi.nlm.nih.gov/pubmed/20976070

(24) https://www.ncbi.nlm.nih.gov/pubmed/25546475

(25) https://figshare.com/articles/_Post_injury_berberine_treatment_attenuated_brain_edema_blood_brain_barrier_BBB_permeability_matrix_metalloproteinase_MMP_9_enzymatic_activity_neutrophil_infiltration_and_ICAM_expression_after_TBI_/1324009

(26) https://www.ncbi.nlm.nih.gov/pubmed/22560097

(27) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1065104/

(28) https://www.ncbi.nlm.nih.gov/pubmed/15519365

(29) https://www.ncbi.nlm.nih.gov/pubmed/17933863

(30) https://www.ncbi.nlm.nih.gov/pubmed/12657997

(31) https://www.ncbi.nlm.nih.gov/pubmed/11599780

(32) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3086010/

(33) http://www.ncbi.nlm.nih.gov/pubmed/18387175

(34) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2330033/

(35) http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3692355/

(36) https://www.ncbi.nlm.nih.gov/pubmed/25330860

(37) http://link.springer.com/article/10.1007/s12031-014-0441-1

(38) https://gumc.georgetown.edu/news/Resveratrol-Appears-to-Restore-Blood-Brain-Barrier-Integrity-in-Alzheimers-Disease

(39) https://www.sciencedaily.com/releases/2016/07/160727140041.htm

(40) https://www.ncbi.nlm.nih.gov/pubmed/22331300

(41) http://www.ncbi.nlm.nih.govhttp://www.ncbi.nlm.nih.gov/pubmed/23791503pubmed/23791503

(42) https://www.ncbi.nlm.nih.gov/pubmed/24694235

(43) http://www.ncbi.nlm.nih.gov/pubmed/26454022

(44) https://www.ncbi.nlm.nih.gov/pubmed/27535376

(45) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3575886/

(46) https://www.ncbi.nlm.nih.gov/pubmed/20980646

(47) https://www.ncbi.nlm.nih.gov/pubmed/26086685

(48) http://physrev.physiology.org/content/91/1/151

(49) http://www.ncbi.nlm.nih.gov/pubmed/16635908

(50) http://www.ncbi.nlm.nih.gov/pubmed/21248165

(51) https://www.ncbi.nlm.nih.gov/pubmed/20170845

(52) http://www.ncbi.nlm.nih.gov/pubmed/11146058

(53) https://www.ncbi.nlm.nih.gov/pubmed/22906518

(54) http://www.nature.com/nm/journal/v2/n12/abs/nm1296-1307.html

(55) http://www.ncbi.nlm.nih.gov/pubmed/11146058

(56) http://stke.sciencemag.org/content/7/353/ec333

(57) https://www.ncbi.nlm.nih.gov/pubmed/25411471

(58) http://www.ncbi.nlm.nih.gov/pubmed/16204625

(59) https://www.ncbi.nlmhttps://www.ncbi.nlm.nih.gov/pubmed/17241155nih.gov/pubmed/17241155

(60) https://www.ncbi.nlm.nih.gov/pubmed/16550326

(61) http://www.ncbi.nlm.nih.gov/pubmed/20549560

(62) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4658139/

(63) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3179161/

(64) https://www.ncbi.nlm.nih.gov/pubmed/9771558

(65) https://www.ncbi.nlm.nih.gov/pubmed/15994020

(66) https://ttu-ir.tdl.org/ttu-ir/handle/2346/13628

(67) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3944243/

(68) http://www.ncbi.nlm.nih.gov/pubmed/9232629

(69) http://www.ncbi.nlm.nih.gov/pubmed/17848733

(70) https://www.ncbi.nlm.nih.gov/pubmed/10591399/

(71) http://www.ncbi.nlm.nih.gov/pubmed/24462216

(72) https://www.ncbi.nlm.nih.gov/pubmed/25815722

(73) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4376709/

(74) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3678220/

(75) http://jcb.sagepub.com/content/early/2016/09/21/0271678X16671147.abstract

(76) https://www.ncbi.nlm.nih.gov/pubmed/24342130

(77) https://etsmjournal.biomedcentral.com/articles/10.1186/s13231-014-0012-0

(78) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3140187/

(79) http://www.ncbi.nlm.nih.gov/pubmed/2525678

(80) http://onlinelibrary.wiley.com/doi/10.1111/j.1749-6632.1999.tb07866.x/abstract

(81) https://www.ncbi.nlm.nih.gov/pubmed/1939760

(82) http://www.ncbi.nlm.nih.gov/pubmed/12826740

(83) https://www.karger.com/Article/Pdf/71002

(84) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4212067/

(85) http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3001216/

(86) http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0154427

(87) https://www.ncbi.nlm.nih.gov/pubmed/19515491

(88) https://www.ncbi.nlm.nih.gov/pubmed/24017972

(89) http://www.ncbi.nlm.nih.gov/pubmed/17881530

(90) http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3745957

(91) https://www.ncbi.nlm.nih.gov/pubmed/21259333

(92) https://www.ncbi.nlm.nih.gov/pubmed/16081203

(93) https://www.sciencedaily.com/releases/2014/06/140602104749.htm

(94) https://www.ncbi.nlm.nih.gov/pubmed/12935941

(95) https://www.ncbi.nlm.nih.gov/pubmed/10329964

(96) https://www.ncbi.nlm.nih.gov/pubmed/16204625

(97) https://www.ncbi.nlm.nih.gov/pubmed/19659460

(98) https://www.ncbi.nlm.nih.gov/pubmed/14554098

(99) http://www.nature.com/ejcn/journal/v62/n4/full/1602866a.html

(100) https://www.ncbi.nlm.nih.gov/pubmed/18606459

(101) https://www.sciencedaily.com/releases/2016/05/160531081800.htm ;

(102) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4023063/

(103) https://www.ncbi.nlm.nih.gov/labs/articles/11461179/

(104) https://www.hindawi.com/journals/cpn/2009/278531/

(105) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3626880/

(106) https://www.ncbi.nlm.nih.gov/pubmed/27243267

(107) https://www.ncbi.nlm.nih.gov/pubmed/17503739

(108) https://www.ncbi.nlm.nih.gov/pubmed/26607405

(109) http://www.sciencealert.com/scientists-think-a-leaky-blood-brain-barrier-is-connected-to-alzheimer-s

(110) https://www.ncbi.nlm.nih.gov/pubmed/20644946

(111) https://www.ncbi.nlm.nih.gov/pubmed/15694227

(112) https://www.ncbi.nlm.nih.gov/pubmed/12675022

(113) https://www.ncbi.nlm.nih.gov/pubmed/15381788

(114) https://www.ncbi.nlm.nih.gov/pubmed/12628496

(115) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3158726/

(116) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2949263/

(117) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4068281/

(118) https://www.ncbi.nlm.nih.gov/pubmed/24948541

(119) https://www.ncbi.nlm.nih.gov/pubmed/24948541

(120) https://www.ncbi.nlm.nih.gov/pubmed/25120639

(121) https://www.ncbi.nlm.nih.gov/pubmed/25026072

(122) http://onlinelibrary.wiley.com/enhanced/doi/10.1196/annals.1320.010

(123) https://www.ncbi.nlm.nih.gov/pubmed/22695423

(124) https://www.ncbi.nlm.nih.gov/pubmed/29496430

(125) http://online.liebertpub.com/doi/abs/10.1089/neu.2011.2053

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