The nutritional factor in depressive states.
D003677:Deficiency Diseases / Q000150:complications*; D003863:Depression / Q000209:etiology*; D003866:Depressive Disorder; D006801:Humans; D001523:Mental Disorders / Q000209:etiology*
DEFICIENCY DISEASES/complications; DEPRESSION/etiology and pathogenesis; MENTAL DISORDERS/etiology and pathogenesis