Peer-reviewed research shows that long-chain omega-3 polyunsaturated fatty acids (n-3 LC-PUFAs) -- namely docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) -- feed the human brain and may improve psychiatric conditions as well as visual function.
A guest commentary on n-3 LC-PUFAs and the brain reveals that DHA helps cell membranes, intracellular metabolism, and regulation of gene expression. It also shows that DHA is key to brain metabolism and both DHA and EPA are beneficial in neuropsychiatric conditions.