20 Nutrient Deficiencies That Can Make You Depressed

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 research that wasn’t even considered by my psychiatrist.

Therapies that they said wouldn’t 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 my doctors 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.

It boggles my mind that many conventional psychiatrists ignore this research.

But that doesn’t mean you need to. 

Read on to learn more. 


1. 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

I take this one.

I feel more depressed when I stop taking it. I actually notice the difference.

This isn’t surprising because 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). 

2. 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 to make sure you’re not deficient. 

Vitamin B12 is found primarily in animal foods, and beef liver is an excellent source. I take these 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.

I take this B complex supplement regularly, and it includes methyl-B12.

3. 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 using a Vitamin D lamp. I use this one.

Or you can take a Vitamin D supplement

I now prefer sunlight and the lamp to get my Vitamin D, but 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). 

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). 

4. 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:

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 magnesium supplement

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

I now take this magnesium threonate supplement before bed. It’s the best form of magnesium for the brain.

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

5. 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:

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.

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6. 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. 

If you decide to supplement with folate, avoid synthetic folic acid, which is commonly found in standard multivitamins. Instead, you should take a biologically active form of folate (methylfolate or 5-MTHF). 

Methylfolate supplements are almost seven times more effective than synthetic folic acid at increasing folate levels. Regular synthetic folic acid has been shown to be quickly cleared from the central nervous system and poorly transported into the brain (51-53). 

On top of this, many people have genetic mutations in the enzyme that converts folic acid into methylfolate in the body. Therefore, folic acid is a waste and can actually cause harm if you have this genetic mutation.

And the research backs up the use of methylfolate.

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). 

Methylfolate is included in this B vitamin complex that I take regularly. Or you can take it separately if you’d like. 

7. 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.

8. 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 1 gram 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). 

9. 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). 

Benfotiamine is the best supplemental form of Vitamin B1. It’s included in this B complex that I take. 

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.

10. 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

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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

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 these 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. You can get them here or here.

Other good sources of iron include:

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

12. 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 taking selenomethionine, which is a highly-absorbable form of selenium.

13. 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. 

14. 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). 

Ubiquinol is the best supplemental form of CoQ10 that is absorbed by the body. It can be used if you have a CoQ10 deficiency. I took CoQ10 when I was on antidepressants and for a short while after coming off them. 

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). 

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16. 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 this inositol powder when weening off psychiatric medication.

I now take a normal amount found in this B complex.

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. 

17. 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. 

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.

But I have found that high-quality liposomal glutathione supplements are effective. 

N-acetyl-cysteine (NAC) is another 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 liposomal glutathione and 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)

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Live Optimally,

Jordan Fallis

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(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/supplements/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.nih.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

Medically reviewed by Dr. Fred Hui, MD, CCFP, CAFC

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9 Nutrient Deficiencies That Can Make You More Anxious

When I first started looking for ways to overcome my chronic anxiety, I originally didn’t think nutrition had anything to do with it. 

But I was wrong.

Being deficient in certain nutrients can actually cause or worsen anxiety.

And getting more of the right vitamins and minerals can increase your ability to properly manage stress.

Anxiety itself can also deplete nutrient levels. 

So the more anxious you are, the faster your body will burn through its vitamins and minerals. 

And the lower your nutrient levels, the more anxiety you’ll have.

It can become a never-ending cycle, eventually leading you to a psychiatrist’s office.

But instead of checking your nutrient levels, your psychiatrist is likely to prescribe you anti-anxiety medication.

And what most people don’t realize – including most psychiatrists – is that anti-anxiety medications can further deplete your nutrient levels.

This all might sound like a disaster, but I promise you – it’s not.

It doesn’t have to be this way. 

You can nip the problem in the bud. 

This article lays out nine nutrient deficiencies that can contribute to anxiety.

Making sure you get enough of these vitamins and minerals through food or supplementation can make a profound difference. 

All of them have really helped me at one point or another.  

Note: If you also have depression, check out my other post, 20 Nutrient Deficiencies That Can Make You Depressed


1. Magnesium

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

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

In fact, research shows that many people are deficient in magnesium nowadays (1-3). 

This is a big problem because magnesium is needed for the proper functioning of your nervous system and optimal neurotransmitter activity.

Researchers have found that low magnesium levels contribute and worsen many neuropsychiatric problems, including anxiety (18). 

In one study, it was shown that not getting enough magnesium can significantly increase your anxiety (19). 


And another study found that a magnesium deficiency can increase anxiety by changing the composition of gut bacteria (23). 

The good news is that nine different studies have concluded that magnesium supplementation can reduce anxiety in humans and improve anxiety-related disorders (20-22, 24-25). 

Plenty of researchers have also found that magnesium has a calming effect in animals by activating GABA (A) receptors. These are the same receptors activated by anti-anxiety medication (26-30). 

So if you have anxiety, it’s clearly 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, you should try to eat magnesium-rich foods on a regular basis.

Magnesium-rich foods include spinach, chard, pumpkin seeds, almonds, avocado, dark chocolate and bananas.

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

Epsom salt baths are another source of magnesium and an excellent way to increase your levels. You can simply throw the salts in your bathtub and take a nice relaxing bed at night before bed.

I also recommend a high-quality magnesium supplement so that you know you’re covering all your bases.

I personally take this magnesium supplement

Magnesium is one of the three supplements that I think everyone should be taking

Correcting a magnesium deficiency can also help you overcome trauma, depression, addiction and withdrawal

2. Zinc

Zinc is another important mineral for mental health, and you want to avoid a deficiency at all costs.

Like magnesium, it supports neurotransmitter production and nervous system functioning, and research shows that having a deficiency can worsen your anxiety

More than one study has found that individuals with anxiety have significantly lower levels of zinc (31, 35-36). 

But supplementing with zinc can effectively increase zinc levels and reduce symptoms of anxiety (31).


Other studies have also revealed a link between zinc deficiency and anxiety (32, 34).

And when animals are fed a zinc-deficient diet, they display increased anxiety-like behaviour (33). 

Unfortunately, researchers estimate that there are more than 2 billion people in the world that are deficient in zinc. And studies have shown that even a minor deficiency of zinc impairs brain function in children and adults (4-6). 

So, if you struggle with anxiety, it’s quite possible that you’re deficient.

And you’ll definitely want to take steps to optimize your zinc levels

Eat zinc-rich foods is a good start.

Some of the best food sources of zinc include oysters, grass-fed beef, pumpkin seeds, cashews, mushrooms and spinach.

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

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

Check out my previous post all about zinc, copper and anxiety if you want to learn more about how zinc impacts your mental health and can contribute to your anxiety.

The article also includes other steps you can taken to increase your zinc levels and lower your anxiety.

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

3. Vitamin B6

Vitamin B6 is a key nutrient that supports your entire nervous system. 

It accomplishes this by playing a key role in the production of calming neurotransmitters in your brain, including serotonin and GABA.

So having a deficiency in Vitamin B6 can definitely increase your anxiety.  

Vitamin B6 levels have been shown to be significantly lower in individuals who have anxiety and panic attacks (37). 


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

But if you want to see quick improvements, you may want to try supplementing.

Studies have found that Vitamin B6 supplements reduce anxiety (38-40).

When I took antidepressants and benzodiazepines for my chronic anxiety, multiple functional and integrative doctors suggested I supplement with vitamin B6.

This is because psychiatric medication can actually further deplete Vitamin B6, increasing anxiety in the long run. 

If you take a medication to manage your anxiety, or simply have anxiety and want to manage it better, I highly recommend supplementing with Vitamin B6

That’s why I included it in the Optimal Zinc supplement.

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4. Omega-3 Fatty Acids

Omega-3 fatty acids are essential fats, meaning your body cannot produce them itself.

They are also necessary for the normal functioning of your brain and nervous system.

So not surprisingly, not eating enough omega-3 fatty acids can increase anxiety. 

Researchers have found low levels of omega-3 fatty acids in anxious individuals (41-42). 


In fact, people with the lowest levels of omega-3 fatty acids tend to have most severe anxiety (46-47).

Omega-3 fatty acids are found primarily in cold water fish such as salmon, black cod, sablefish, sardines and herring.

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. 

I take this one

I feel more anxious when I stop taking it. I actually notice the difference.

Researchers have also noticed this, as numerous studies show that supplementing with fish oil can lower inflammation and reduce symptoms of anxiety (43-46, 48). 

Other than reducing anxiety, omega-3 fatty acids have been shown to stimulate your endocannabinoid system and lower cortisol.

You can read more about the importance of omega-3 fatty acids here.

5. Choline

Choline is an essential nutrient that was only discovered in 1998.

So it’s fairly new.

Your body makes a small amount of choline, but you still need to eat enough of it through your diet.

Otherwise, you can develop a deficiency.

And many people do.

Most people don’t meet the recommended intake for choline because very few foods in the Western diet contain it.

And researchers have found that adults with low levels of choline are more likely to have anxiety (49-50). 


Animal studies have also shown that choline supplementation during pregnancy can prevent or dramatically reduce the chance of offspring developing anxiety disorders (51). 

The best food sources of choline include grass-fed beef liver and egg yolks, and I definitely recommend eating those foods regularly.

But taking a high-quality choline supplement can have a more noticeable and immediate effect on stress levels. 

Citicoline (also known as CDP-Choline) is my favourite choline supplement. 

I find that it reduces my racing thoughts when I’m stressed or anxious. 

Another good source of choline is Alpha GPC. 

Both Alpha GPC and CDP-Choline are included in the Optimal Brain supplement

Choline can also promote the regeneration of myelin

6. Selenium

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

Research shows that being low or deficient in selenium is associated with a significantly greater incidence of anxiety, and selenium supplementation diminishes anxiety (54). 


In one study, researchers found that individuals with the lowest levels of selenium reported they had increased anxiety (52). 

But then after five weeks of supplementing with selenium, their anxiety decreased (52).

Another study found that selenium supplementation reduced anxiety in HIV+ drug users (53). 

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

I also make sure I’m not deficient by supplementing with it.

Selenomethionine is a highly-absorbable form of selenium.

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7. 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 and irritable.

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 (57). 

In fact, iron levels are significantly lower in individuals with panic disorder (58). 


And other studies have found that iron-deficient individuals have increased anxiety and increased fearfulness (55-56). 

Animal research also supports the idea that iron deficiency increases anxiety, and normalizing iron levels can reverse anxiety-like behaviour (56). 

Despite all 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 (56). 

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 these 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 and raisons

8. Vitamin D

Vitamin D is a fat-soluble vitamin.

It’s actually more accurate to describe it as a hormone because your skins synthesizes it when it’s exposed to sunlight.

Every tissue in your body has Vitamin D receptors, including the brain.

So developing a deficiency can lead to a number of costly physiological and psychological problems, including anxiety.

And this is backed up by research.

Researchers have discovered significantly lower levels of Vitamin D in individuals with anxiety (60, 62). 


And two studies found that fibromyalgia patients and pregnant women with Vitamin D deficiency have higher levels of anxiety (59, 61). 

Unfortunately, reports indicate that Vitamin D deficiency is very common and a major health problem across the globe (11).

Researchers estimate that 50 percent of the general population is at risk of Vitamin D deficiency (12).

It’s best to get your Vitamin D by going outside and getting sunlight, but some people can’t get enough, especially during the winter.

That’s why I recommend using a Vitamin D lamp. I use this one.

Or you can take a Vitamin D supplement

Increasing your Vitamin D levels can also help with depression, addiction and withdrawal

9. Antioxidant Nutrients (Vitamins A, C, and E)

Lastly, some nutrients have antioxidant effects in the body, and being deficient in them can increase your anxiety. 

One study found that people with generalized anxiety disorder have significantly lower levels of Vitamin A (beta carotene), Vitamin C and Vitamin E, all of which have antioxidant properties (68). 

But after six weeks of supplementing with these vitamins, researchers observed a significant increase in the blood levels of these nutrients, and the anxious patients experienced a significantly reduction in their anxiety (68). 


Researchers have also found that taking both Vitamin C and Vitamin E together reduces anxiety (15-17).

And several other studies show that high dose Vitamin C decreases anxiety (14, 69-71).

In addiction to getting Vitamin C from fruits and vegetables, I take at least 500 mg of Vitamin C every day.

I’ve tried taking up to 10 grams of Vitamin C daily, and it helped me manage anxiety. But you don’t need to do that regularly unless you find it really helps you.

Good food sources of Vitamin E include almonds, spinach, sweet potatoes, avocados, olive oil, sunflower seeds and butternut squash.

Vitamin E is also included in the Optimal Antiox supplement, along with Vitamin C.

For Vitamin A, I don’t typically recommend supplementing with it. Instead, you should get enough from food, such as grass-fed beef liver, pastured egg yolks, grass-fed butter/ghee, carrots, sweet potatoes, kale, spinach and broccoli. 

Cod liver oil is also a very good source of Vitamin A, and it includes Vitamin D as well. I take cod liver oil throughout the winter. 

Antioxidants can also reduce your body’s main stress hormone

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Bringing It All Together: Why You Should Take Them in Combination

The mainstream approach to treating anxiety is through talk therapy and medication.

But you can’t treat a nutrient deficiency with counselling and prescriptions.

And it’s important to note that taking all the above nutrients in combination will provide the greatest relief from anxiety.

Together, they have a synergistic effect.

For example, numerous researchers have found that taking Vitamin B6 and magnesium together is more likely to reduce your anxiety than simply taking a magnesium supplement by itself (64, 66-67). 

At this point, you may be thinking that you could just take a daily multivitamin, and that would cover your bases. 

But I wouldn’t recommend it.


Because one-a-day multivitamins often contain too much of the nutrients you don’t need (synthetic folic acid), and not enough of the nutrients you do need (magnesium, Vitamin D). 

Overall, if you have anxiety, I would recommend:

If you need additional support, I also recommend this anti-anxiety supplement. It contains a number of natural compounds that I’ve used over the years to manage my anxiety. You can use the coupon code FIVE$45496275 for a 5% discount.

And don’t forget to stimulate your vagus nerve regularly and process any emotionally traumatic experiences from your past. 

Nutrition is just one piece of the puzzle. 

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

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

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

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

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

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

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

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

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

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

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

(12) http://articles.mercola.com/sites/articles/archive/2014/05/28/vitamin-d-deficiency-signs-symptoms.aspx

(13) https://goo.gl/sK35dL

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

(15) http://www.ncbi.nlm.nih.gov/pubmed/21036190

(16) http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3560823/

(17) http://www.ncbi.nlm.nih.gov/pubmed/21839761

(18) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3198864/

(19) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5452159/

(20) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5452159/

(21) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2959081/

(22) https://www.ncbi.nlm.nih.gov/pubmed/27869100

(23) https://www.ncbi.nlm.nih.gov/pubmed/25773775

(24) https://www.ncbi.nlm.nih.gov/pubmed/26591563

(25) https://www.ncbi.nlm.nih.gov/pubmed/20305593

(26) https://www.ncbi.nlm.nih.gov/pubmed/15159129

(27) https://www.ncbi.nlm.nih.gov/pubmed/18799816

(28) https://www.ncbi.nlm.nih.gov/pubmed/28389335

(29) https://www.ncbi.nlm.nih.gov/pubmed/21835188

(30) https://www.ncbi.nlm.nih.gov/pubmed/25773775

(31) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3738454/

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

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

(34) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2954453/

(35) https://www.ncbi.nlm.nih.gov/pubmed/23754591

(36) https://www.ncbi.nlm.nih.gov/pubmed/27825785

(37) https://www.ncbi.nlm.nih.gov/pubmed/23603926

(38) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2572855/

(39) https://www.ncbi.nlm.nih.gov/pubmed/10746516/

(40) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4161081/

(41) https://www.ncbi.nlm.nih.gov/pubmed/16243493

(42) https://www.ncbi.nlm.nih.gov/pubmed/25591045

(43) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2275606/

(44) https://www.ncbi.nlm.nih.gov/pubmed/21784145

(45) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3191260/

(46) https://www.ncbi.nlm.nih.gov/pubmed/19906519

(47) https://www.ncbi.nlm.nih.gov/pubmed/23945451

(48) https://www.ncbi.nlm.nih.gov/pubmed/17110827

(49) http://ajcn.nutrition.org/content/90/4/1056.full

(50) https://www.ncbi.nlm.nih.gov/pubmed/19656836/

(51) https://www.ncbi.nlm.nih.gov/pubmed/25300468

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

(53) https://www.ncbi.nlm.nih.gov/pubmed/12906343

(54) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4884624/

(55) https://www.ncbi.nlm.nih.gov/pubmed/10742372/

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

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

(58) https://www.ncbi.nlm.nih.gov/pubmed/23603926

(59) https://www.ncbi.nlm.nih.gov/pubmed/16850115

(60) https://www.ncbi.nlm.nih.gov/pubmed/26680471

(61) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4089018/

(62) https://www.ncbi.nlm.nih.gov/pubmed/27827293

(63) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3759100/

(64) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3208934/

(65) https://www.ncbi.nlm.nih.gov/pubmed/23738221

(66) https://www.ncbi.nlm.nih.gov/pubmed/26978056

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

(68) http://pubmedcentralcanada.ca/pmcc/articles/PMC3512361/

(69) https://www.ncbi.nlm.nih.gov/pubmed/27932080

(70) https://www.ncbi.nlm.nih.gov/pubmed/26353411

(71) https://www.ncbi.nlm.nih.gov/pubmed/24511708

Medically reviewed by Dr. Fred Hui, MD, CCFP, CAFC

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3 Foods You Should Avoid for Better Mental Health

Avoiding these three foods was one of the very first steps I took to improve my mental health.

I had a lot more energy, improved mood and reduced anxiety.

Unfortunately, about two months after cutting them out, I moved into a moldy house and suffered two really bad concussions. At that point, I had to look for even more advanced solutions.

But if you haven't done so already, I would strongly encourage you to try removing these three foods from your diet.

Doing so will likely improve your symptoms and calm your nervous system, making other therapies even more effective.

It’s harder to overcome trauma if you haven’t taken care of your physiology, as researchers have found that food allergies and sensitivities can trigger a wide range of emotional and mental health symptoms (110).

The problem with some foods is that they disrupt normal gut function and increase intestinal permeability (leaky gut syndrome). 

When this happens, small particles of food can leak into your bloodstream. Your immune system sees these food particles as foreign entities and attacks them, increasing inflammation throughout your body and reducing the integrity of the blood-brain barrier, which can cause or worsen mental health problems (4-6, 66-67). 

This is discussed in the book Gut and Psychology Syndrome: Natural Treatment for Autism, ADD/ADHD, Dyslexia, Dyspraxia, Depression, Schizophrenia by Dr. Natasha Campbell-McBride, MD.

If I eat any of these three foods by accident, I supplement with activated charcoal or bentonite clay

Activated charcoal and bentonite clay are potent natural treatments that can trap problematic proteins, toxins and chemicals, allowing them to be flushed out of your body. 

I notice I don’t feel as sick when I do this, and recover much more quickly.

Without further ado, here are three foods that I avoid as much as possible. 

3-foods-you-should-avoid-for-better-mental-health-food-mental-health-nutrition-for-diet-and-depression-best-foods-healthy-eating-mental-illness-good-eating for mental health-the-importance-wellness-pdf-handout-guide-psychiatry-role-in-book

1. Wheat

Gluten sensitivity can be primarily, and at times, exclusively, a neurological disease.
— Dr. Hadjivassiliou, MD, Professor of Neurology

Following a gluten-free diet has significantly improved my mental health (even though I didn’t have any terrible digestive issues). 

wheat-3-foods-you-should-avoid-for-better-mental-health-food-mental-health-nutrition-for-diet-and-depression-best-foods-healthy-eating-mental-illness-good-eating for mental health-the-importance-wellness-pdf-handout-guide-psychiatry-role-in-book

I completely cut it out seven years ago, and within a few weeks, I felt so much better mentally. 

I also lost a bunch of weight and my asthma disappeared. 

I haven't touched it again since.

The same thing happened to Mikhaila Peterson, the daughter of University of Toronto Professor Jordan Peterson.

She followed a gluten-free diet and her depression, fatigue, irritability and memory problems faded away, allowing her to come off her antidepressants.

Dr. Peterson made the same dietary changes and was able to reduce his medication by half. 

You can watch a video of them discussing it here

Unfortunately, the myth continues to spread that only people with celiac disease need to avoid gluten-containing food. That’s simply not true.  

Dr. Kenneth Fine, a pioneer in gluten intolerance research, has demonstrated that 1 in 3 Americans are gluten intolerant, and that 8 in 10 have the genes that predispose them to developing gluten intolerance (1-3). 

The benefits of cutting out gluten are also discussed in this book

So if you struggle with a cognitive or mental health condition, you owe it to yourself to follow a strict gluten-free diet for 30 days and see how you feel. You'll likely feel better.

For more than sixty years, reports in the scientific literature have linked wheat and gluten sensitivity to a variety of neurological and psychiatric conditions (75-81), including:

A PubMed literature search (dates 1953–2011) located 162 original articles associating psychiatric and neurologic complications to celiac disease or gluten sensitivity. Thirty-six articles were located for seizure disorders, 20 articles for ataxia and cerebellar degeneration, 26 for neuropathy, 20 for schizophrenia, 14 for depression, 12 for migraine, and up to 10 articles each for anxiety disorders, attention deficit and hyperactivity disorder, autism, multiple sclerosis, myasthenia gravis, myopathy, and white matter lesions.
  • Schizophrenia (39-60)

  • Depression (18-25)

  • Autism spectrum disorders (30-38)

  • Epilepsy and seizures (13-17)

  • Dementia and cognitive decline (61-63)

  • Anxiety (9-10)

  • Attention deficit hyperactivity disorder (26-27)

  • Cerebellar ataxia (69-72)

  • Social phobia (11)

  • Panic disorder (12)

  • Bipolar disorder (28)

  • Migraines (29)


Luckily, research shows that when people with these neurological and psychiatric disorders follow a gluten-free diet, there is a reduction in their symptoms. 

Many times, there is even a complete resolution in their symptoms. 

In one study, depressed patients who didn’t have digestive issues (like me) followed a gluten-free diet. Within 2-3 months, they experienced a reversal of their depressive symptoms (68). 

Researchers have also found that a gluten-free diet improves depression and reduces behavioural problems by increasing levels of l-tryptophan – the precursor to the neurotransmitter serotonin (64). 

Another study found a significant increase in serotonin and dopamine because of the removal of gluten (65). 

Clearly, there is more to gluten than celiac disease and digestive issues, and cutting out wheat is one of the first dietary steps I recommend to people who are striving to overcome mental health challenges. 

I understand that it's tough to cut out completely, but it’s worth a try because it may be all you need. 

A grain-free diet, although difficult to maintain (especially for those that need it the most), could improve the mental health of many and be a complete cure for others.
— Dr. Paola Bressan

Other than avoiding wheat, you should also avoid foods that contain barley, rye and spelt because they also contain gluten. Sauces, condiments and soups often contain it, so you should stay clear of almost all processed food. Even some medications can contain gluten

As discussed in the GAPS Diet book, the bacteria in our guts can determine the degree to which we are sensitive to gluten (73). 

So you should also try to increase the good bacteria in your gut

And as I mentioned earlier, I take this activated charcoal or this bentonite clay whenever I accidentally consume wheat and it minimizes the negative effects. 

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2. Milk

"Milk, and all that comes from milk, increases melancholy." – Robert Burton, Anatomy of Melancholy

After childhood, many people lose the enzyme, lactase, required to digest milk.

And a lot of people who suffer from brain and mental health problems are allergic or sensitive to milk.

People are allergic or sensitive to two main components of milk – lactose and casein.

Casein is the milk protein. Lactose is the milk sugar. 

Like gluten, both lactose and casein can contribute to inflammation in the body and brain, contributing to mental illness.

milk-3-foods-you-should-avoid-for-better-mental-health-food-mental-health-nutrition-for-diet-and-depression-best-foods-healthy-eating-mental-illness-good-eating for mental health-the-importance-wellness-pdf-handout-guide-psychiatry-role-in-book

Research shows that people with neuropsychiatric diseases – including schizophrenia, bipolar disorder, depression, anxiety, and autism – often have significantly elevated immune reactions to casein in milk, which corresponds with the severity of their mental symptoms. And their symptoms can be “improved substantially or even been cured completely” on a dairy-free diet (82-83, 85-91). 

Interestingly, casein has been shown to reduce the absorption of cysteine by 64% (92). 

Cysteine is an important amino acid for mental health. I previously discussed it here

It plays a role in the production of glutathione, your body’s master antioxidant, which protects your body from oxidative stress. And people with mental health problems often have high levels of oxidative stress (93-94). 

Therefore, milk may indirectly reduce glutathione levels and increase oxidative stress by preventing the amino acid cysteine from entering cells (92). 

Perhaps this is why so many people find benefit from supplementing with n-acetyl-cysteine

Folate is another critical nutrient for mental health, and milk has been shown to decrease the transport of folate into the brain (95). 

This makes sense considering that folate plays a key role in methylation, and other research has found that casein also reduces DNA methylation by 43% (96). 

Lastly, researchers have also discovered that high levels of lactose in the intestines can interfere with tryptophan metabolism and serotonin levels. They concluded that lactose malabsorption may play a role in the development of depression (84). 

All this being said, it seems that dairy affects everyone differently.

So you should try eliminating all conventional milk-based foods including ice cream, cheese and yogurt for 30 days. Then try adding it back in and examine how you feel.

It’s important to note that the milk in the grocery store is usually processed, homogenized, and pasteurized with distorted fats and denatured proteins. It’s not considered a whole food and I think everyone should avoid it. 

My free food guide still includes grass-fed, full-fat, organic dairy because it’s a healthy whole food and plenty of people can tolerate it just fine.

I personally choose not to eat any milk or dairy though because I still feel better without it.

In conclusion, here is Dr. Daniel Kalish’s take on dairy. He is the author of The Kalish Method: Healing the Body, Mapping the Mind

People with sub-clinical gluten intolerance need to avoid pasteurized cow’s milk products. As the villi on the intestinal lining heal from a gluten free diet, most individuals will be able to tolerate raw or unpasteurized dairy products again in nine months to a year. In other people, there will be a more or less permanent sensitivity to dairy products. However, in the initial two months of eliminating gluten, it is absolutely required to avoid all milk dairy products, because they will inflame the intestine lining just like gluten does and prevent healing.
— Dr. Daniel Kalish

3. Vegetable Oil

The increased incidence rate of major depression since 1913 may be explained by a sharp increase in the rate of omega-6 PUFAs in the diet.
— Dr. Michael Maes

The last food you should avoid or significantly limit is refined vegetable oil, including soybean, corn, safflower, sunflower, and canola oils.

They are highly unstable and oxidize very easily. 

Like gluten, vegetable oils are everywhere and hard to avoid because they’re included in most processed foods.  

These oils are also predominantly made up of omega-6 fatty acids.

This is a problem because most people eat way too many omega-6 fatty acids today, and not enough omega-3 fatty acids.  

Omega-6 fatty acids increase inflammation, while omega-3 fatty acids reduce inflammation.

An international panel of lipid experts says that the ideal dietary ratio of omega-6 to omega-3 is approximately 1 to 1. But these same experts estimate that the current ratio that people are consuming today is around 20 to 1 (97-101).

As I discussed before, omega-3 fatty acids can help prevent and treat mental disorders

Unfortunately, they are being outnumbered by the inflammatory omega-6 fatty acids in our food supply. 

Luckily you can combat this by staying clear of vegetable oils, supplementing with krill oil, and eating wild salmon regularly (You can get very high-quality seafood and krill oil supplements here).

Not doing this can lead to mental health problems.

Dr. Raymond Peat, PhD, says that the sudden increase of vegetable oils in our food supply after World War II has caused many changes in our mental health:

In 1980, experimenters demonstrated that young rats fed milk containing soy oil incorporated the oil directly into their brain cells, and had structurally abnormal brain cells as a result.

Studies have also found a very strong correlation between vegetable oil consumption and violent behavior, including homicide (109). 

This graph shows data from one study, looking at omega-6 intake and homicide rates in five countries.

Dr. Stephan Guyenet, author of The Hungry Brain: Outsmarting the Instincts That Make Us Overeat, discusses this in more depth here

And it’s not just violent behaviour. 

There is a significant correlation between the severity of depression and the ratio of omega-6 to omega-3 fatty acids. Many researchers suggest trying to treat depression by reducing the ratio with omega-3 supplementation (106). 

Other researchers have found significantly lower levels of omega-3 fatty acids in the blood of patients with depression because of their higher omega-6 fatty acid intake (107). 

Too many omega-6 fatty acids have also been linked to increases in cortisol, your body’s main stress hormone (102-104). 

And elevated homocysteine levels – a known risk factor for mental health problems – has been associated with excess omega-6 fatty acids (108). 

I recommend checking out the Perfect Health Diet if you’re interested in learning more about the detrimental health effects of refined vegetable oils. 

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Other Possible Food Intolerances

Be aware that you may be sensitive or intolerant to other seemingly healthy foods, and if so, they should be avoided to maintain good mental health. 

This is discussed in Brain Allergies: The Psychonutrient and Magnetic Connections by Dr. Willam Philpott, MD. 

eggs-3-foods-you-should-avoid-for-better-mental-health-food-mental-health-nutrition-for-diet-and-depression-best-foods-healthy-eating-mental-illness-good-eating for mental health-the-importance-wellness-pdf-handout-guide-psychiatry-role-in-book

For example, eggs are an incredibly nutritious and healthy food, but I’m personally intolerant to the egg whites, so I throw away the whites and just eat the yolks. 

It’s not a big deal though because the yolks are the healthiest part of the egg anyway.

But I originally figured this out by following an elimination diet.

You eliminate all possible food allergens and then add them back in one by one and see if you have a negative reaction.

You can learn more about it in this book. 

Some of the most common food allergens that could affect your mental health include:

  • Eggs

  • Soy

  • Corn

  • Nightshade vegetables

  • Peanuts

  • Tree nuts, like walnuts, almonds, pine nuts, brazil nuts, and pecans.

  • Yeast

  • Fish

  • Shellfish

  • Sulphites

If you struggle with mental health problems, you should cut them all out for at least 2 weeks. Then add them back in one by one and see how you feel. 

Eat each food a lot over the course of three days and monitor your reaction to each one. Sometimes negative symptoms can pop up a few days later. 


Unfortunately, the role of food in the development of mental health disorders is often overlooked by conventional psychiatrists and some psychologists. 

3-foods-you-should-avoid-for-better-mental-health-food-mental-health-nutrition-for-diet-and-depression-best-foods-healthy-eating-mental-illness-good-eating for mental health-the-importance-wellness-pdf-handout-guide-psychiatry-role-in-book-food-brain

They hardly receive any training in nutrition and rarely consider food intolerances as a possible cause of mental health symptoms. 

Instead, psychiatric drugs are simply prescribed, which can lead to worse gut health, more symptoms and more medications. 

However, psychiatric drugs are necessary for many people. I completely understand that.

But if your mental health is failing, try eliminating gluten, dairy and refined vegetable oils and observe the effects. You may be surprised at how much better you feel. 

Please share this post with anyone that might find it useful. 

Let’s spread the word that there is a link between nutrition and mental health!

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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(1) http://www.sciencedaily.com/releases/2006/10/061010022602.htm

(2) http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3184556/

(3) http://onlinelibrary.wiley.com/doi/10.1111/apt.12809/full

(4) http://www.ncbi.nlm.nih.gov/pubmed/12366374

(5) http://www.ncbi.nlm.nih.gov/pubmed/19014325

(6) http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1808742/

(7) https://www.eurekalert.org/pub_releases/2016-10/sh-nsl101016.php

(8) https://www.ncbi.nlm.nih.gov/pubmed/24275240

(9) https://www.ncbi.nlm.nih.gov/pubmed/11346203/

(10) https://www.ncbi.nlm.nih.gov/pubmed/20533598/

(11) https://www.ncbi.nlm.nih.gov/pubmed/18365905/

(12) https://www.ncbi.nlm.nih.gov/pubmed/12217453

(13) https://www.ncbi.nlm.nih.gov/pubmed/15489401/

(14) https://www.ncbi.nlm.nih.gov/pubmed/9548226/

(15) https://www.ncbi.nlm.nih.gov/pubmed/17122729/

(16) https://www.ncbi.nlm.nih.gov/pubmed/7842435/

(17) https://www.ncbi.nlm.nih.gov/pubmed/19244266/

(18) https://www.ncbi.nlm.nih.gov/pubmed/14716525/

(19) https://www.ncbi.nlm.nih.gov/pubmed/12217453

(20) https://www.ncbi.nlm.nih.gov/pubmed/14716525/

(21) https://www.ncbi.nlm.nih.gov/pubmed/17030405/

(22) https://www.ncbi.nlm.nih.gov/pubmed/20545470/

(23) https://www.ncbi.nlm.nih.gov/pubmed/10086676/

(24) http://onlinelibrary.wiley.com/doi/10.1111/apt.12730/abstract

(25) https://www.ncbi.nlm.nih.gov/pubmed/24689456

(26) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3184556/

(27) https://www.ncbi.nlm.nih.gov/pubmed/17085630/

(28) http://onlinelibrary.wiley.com/doi/10.1111/j.1399-5618.2011.00894.x/full

(29) https://www.ncbi.nlm.nih.gov/pubmed/12650798/

(30) https://www.ncbi.nlm.nih.gov/pubmed/19564647

(31) https://www.ncbi.nlm.nih.gov/pubmed/19581261/

(32) https://www.ncbi.nlm.nih.gov/pubmed/19027584/

(33) https://www.ncbi.nlm.nih.gov/pubmed/20683204/

(34) https://www.ncbi.nlm.nih.gov/pubmed/15526989/

(35) https://www.ncbi.nlm.nih.gov/pubmed/12168688

(36) https://www.ncbi.nlm.nih.gov/pubmed/20406576

(37) https://www.ncbi.nlm.nih.gov/pubmed/19664354

(38) https://www.ncbi.nlm.nih.gov/pubmed/8930054

(39) https://www.ncbi.nlm.nih.gov/pubmed/16423158/

(40) https://www.ncbi.nlm.nih.gov/pubmed/13707687/

(41) https://www.ncbi.nlm.nih.gov/pubmed/5820122/

(42) https://www.ncbi.nlm.nih.gov/pubmed/4739849/

(43) https://www.ncbi.nlm.nih.gov/pubmed/1246624/

(44) https://www.ncbi.nlm.nih.gov/pubmed/567316/

(45) https://www.ncbi.nlm.nih.gov/pubmed/9408073/

(46) https://www.ncbi.nlm.nih.gov/pubmed/707651/

(47) https://www.ncbi.nlm.nih.gov/pubmed/3524724/

(48) https://www.ncbi.nlm.nih.gov/pubmed/7270725/

(49) https://www.ncbi.nlm.nih.gov/pubmed/19494248/

(50) https://www.ncbi.nlm.nih.gov/pubmed/20471632/

(51) https://www.ncbi.nlm.nih.gov/pubmed/20884755/

(52) https://www.ncbi.nlm.nih.gov/pubmed/19748229/

(53) https://www.ncbi.nlm.nih.gov/pubmed/6192458/

(54) https://www.ncbi.nlm.nih.gov/pubmed/19748229

(55) https://goo.gl/CBo7bX

(56) http://www.ncbi.nlm.nih.gov/pubmed/19748229

(57) https://www.ncbi.nlm.nih.gov/pubmed/22535227

(58) http://http//onlinelibrary.wiley.com/doi/10.1111/j.1600-0447.1966.tb01920.x/abstract

(59) https://www.ncbi.nlm.nih.gov/pubmed/19494248

(60) https://www.ncbi.nlm.nih.gov/pubmed/6609726

(61) https://www.sciencedaily.com/releases/2006/10/061010022602.htm

(62) http://jamanetwork.com/journals/jamaneurology/fullarticle/792544

(63) https://www.ncbi.nlm.nih.gov/pubmed/17030661

(64) https://www.ncbi.nlm.nih.gov/pubmed/15774013/

(65) https://www.ncbi.nlm.nih.gov/pubmed/6192458/

(66) https://www.ncbi.nlm.nih.gov/pubmed/21248165

(67) https://www.ncbi.nlm.nih.gov/pubmed/23639523

(68) https://www.ncbi.nlm.nih.gov/pubmed/10086676

(69) http://brain.oxfordjournals.org/content/126/3/685.short

(70) http://brain.oxfordjournals.org/content/124/5/1013.full

(71) http://www.ncbi.nlm.nih.gov/pubmed/18787912

(72) http://jnnp.bmj.com/content/74/9/1221.full

(73) https://www.ncbi.nlm.nih.gov/pubmed/24483336

(74) http://journal.frontiersin.org/article/10.3389/fnhum.2016.00130/full

(75) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4517012/

(76) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3944951/

(77) http://jnnp.bmj.com/content/72/5/560.full

(78) https://www.hindawi.com/journals/grp/2014/293206/

(79) https://www.ncbi.nlm.nih.gov/pubmed/5900428/

(80) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3641836/

(81) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3641836/

(82) http://journal.frontiersin.org/article/10.3389/fnhum.2016.00130/full

(83) https://www.ncbi.nlm.nih.gov/pubmed/20071146

(84) https://www.ncbi.nlm.nih.gov/pubmed/9824144

(85) http://www.ncbi.nlm.nih.gov/pubmed/24313887

(86) https://www.ncbi.nlm.nih.gov/pubmed/24313887

(87) https://www.ncbi.nlm.nih.gov/pubmed/20071146

(88) https://www.ncbi.nlm.nih.gov/pubmed/21176030

(89) http://www.ncbi.nlm.nih.gov/pubmed/20406576

(90) http://www.ncbi.nlm.nih.gov/pubmed/20071146

(91) https://www.ncbi.nlm.nih.gov/pubmed/22801085

(92) https://www.ncbi.nlm.nih.gov/pubmed/25018147

(93) https://www.ncbi.nlm.nih.gov/pubmed/16410648

(94) https://www.ncbi.nlm.nih.gov/pubmed/22542447

(95) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2715943/

(96) https://www.ncbi.nlm.nih.gov/pubmed/25018147

(97) https://www.ncbi.nlm.nih.gov/pubmed/10511332/

(98) https://goo.gl/ChjWh4

(99) http://www.nutrasource.ca/files/omega_3_chronic_nov2006.pdf

(100) https://ods.od.nih.gov/pubs/conferences/w6w3_abstracts.html

(101) https://www.ncbi.nlm.nih.gov/pubmed/14579680/

(102) http://www.ncbi.nlm.nih.gov/pubmed/14579682

(103) http://www.ncbi.nlm.nih.gov/pubmed/12442909

(104) http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3081099/

(105) http://bjp.rcpsych.org/content/186/4/275

(106) https://www.ncbi.nlm.nih.gov/pubmed/8729112/

(107) http://ajcn.nutrition.org/content/62/1/1.abstract

(108) https://www.ncbi.nlm.nih.gov/pubmed/15041026/

(109) https://www.ncbi.nlm.nih.gov/pubmed/15736917

(110) http://www.ncbi.nlm.nih.gov/pubmed/7225473

Medically reviewed by Dr. Robert Blake Gibb, MD

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9 Supplements Proven to Help You Overcome Addiction and Withdrawal

I've been dependent on a lot of substances over the years. 

When my brain wasn’t working and I struggled with mental illness, it simply made sense to find immediate relief from something outside myself – even if it wasn't good for me - at least until I found better long-term, sustainable solutions.

I really felt like I had no other choice at the time. 

And I know there are a lot of people out there grappling with the same thing.

Read More