5 Nutritional Deficiencies That Cause Anxiety/Depression

nutrient deficiencies

Did you know that there are several root causes of anxiety? Your anxiety and panic attacks are not in your head but a sign of inflammation in your brain. Nutritional deficiencies are the most common cause I see in my clinic. 

Here are a few of the nutritional deficiencies to look for:

VITAMIN B COMPLEX (B1, B12)

The B vitamins help with nervous system functioning, and being under a lot of stress can deplete your levels. A deficiency can lead to anxiety, fatigue, and mood problems. Vitamin B12 deficiency can be prevalent in vegans and vegetarians who do not supplement with this critical vitamin.

  • B12 deficiency can cause macrocytic anemia, anxiety, depression, concentration and inattention disorders, chronic stress, and chronic fatigue.
  • Studies have found Vitamin B helpful in treating anxiety disorders, particularly agoraphobia and obsessive thoughts.
  • Many familiar sources are animal products, so supplementing with Vitamin B is even more important if you eat a primarily vegetarian or vegan diet. Good sources of B vitamins include meat, turkey, whole grains, potatoes, bananas, and legumes.

MAGNESIUM

Magnesium is a nutrient that plays a part in more than 300 of the body’s biochemical reactions and regulates the release of stress hormones.

  • Studies on humans and mice have shown a strong connection between magnesium levels and depression and anxiety.
  • Magnesium-rich foods include dark leafy vegetables like spinach, pumpkin seeds, whole grains, and fruits like watermelon and figs.
  • Many herbs and spices are also good sources of magnesium. Cooking with parsley, fennel seed, paprika, cayenne pepper, and herbal tea are tasty ways to get more of the mineral.

VITAMIN D

Vitamin D is known as the “sunshine vitamin” because its primary source is sunlight. It is a fat-soluble vitamin. Those living in climates that experience cold, dark winters are at very high risk for a deficiency. 30 to 100 percent of us are deficient in Vitamin D.

  • Research has shown that individuals with depression and anxiety disorders also commonly have low levels of Vitamin D.
  • If you have darker skin, don’t spend much time outside, or are an older adult, Vitamin D supplementation is the best way to ensure you’re getting enough.
  • Adults deficient in vitamin D may experience muscle weakness, bone loss, and an increased risk of fractures. It may cause growth delays and soft bones (rickets) in children.
  • There are few food sources, including fatty fish, fortified products such as milk and juice, cheese, and egg yolks.

IRON

Iron is essential for oxygen delivery from the lungs to organs and tissues, energy, and thyroid hormone production. All three of these functions massively impact brain function.

  • Iron deficiency can cause anemia, fatigue, exercise intolerance, hair loss, restless leg syndrome, heavy menstrual bleeding, anxiety, ADHD, and depression.
  • Iron is highest in foods like beef, lamb, chicken, and leafy greens.

ZINC

Zinc is a mineral cofactor and antioxidant essential to healthy cellular, immune, thyroid, and cognitive function. It is necessary to make serotonin and dopamine. Often women with PCOS are low in zinc and have higher levels of depression and anxiety.

  • Zinc deficiency can cause an impaired sense of taste, pica, and infertility in men. Zinc deficiency is linked to anxiety, depression, and concentration because it is necessary for the function of GABA and NMDA receptors which balance the brain’s relaxing, inhibitory GABA pathway with the alert, excitatory glutamate pathway.

Other nutrient deficiencies not mentioned above are iodine and vitamin A.

Get Tested

If you’re experiencing some of the symptoms listed above, it might be a good idea to visit your doctor or an integrative medicine practitioner and get tested. Remember that blood serum tests are not always good indicators of deficiencies. Some vitamins and minerals are hard to test, so seek care from a practitioner that can help you figure out what is the ROOT cause of your anxiety. 

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