Multiple investigations have demonstrated an association between low zinc levels in the blood and higher risk for depression.

Studies also indicate a link between higher dietary zinc and lower depression risk.

Zinc is present in high concentrations in certain brain cells that support neural plasticity — the brain’s ability to respond to the environment, thoughts, and emotions.

Other research shows that zinc supplements may even augment the benefits of antidepressant drugs.

In a double-blind placebo-controlled study published in the journal Nutritional Neuroscience, volunteers who took 30 mg of daily zinc for 12 weeks experienced a greater decrease in depressive symptoms than those taking placebo.

Experts warn that zinc treatments should be supervised by a doctor; if blood levels get too high, people can experience negative side effects.

Eating a healthy diet is probably the best and healthiest way to avoid zinc deficiency.