Zinc: The New Antidepressant?
Serum zinc levels have been found low in patients with major depression. Treatment with zinc appears to have an antidepressant effect. Human trials found that zinc supplementation augmented the effects of antidepressant drugs by over fifty percent.
Levenson, CW, Zinc: The New Antidepressant? Nutr. Rev. 64,1, 2006.