Nutrition & Mental Health

Role

Nutritional psychiatry is the field making the most consequential case for nutrition as medicine — demonstrating that the choice between a whole-food Mediterranean-style diet and an ultra-processed Western diet produces measurable differences in depression risk comparable in magnitude to many pharmacological interventions, with the SMILES trial showing that dietary improvement reduced depression symptoms more than social support control in people with existing major depressive disorder. The majority of people experiencing depression and anxiety who are receiving pharmaceutical and psychological treatment have never been told that the food they eat is directly modulating the neurochemistry, neuroinflammation, and gut-brain axis signaling that determines their mental health baseline — leaving one of the most modifiable contributing factors entirely unaddressed.