The Science of Metabolic Psychiatry

The rapidly emerging field of metabolic psychiatry is built on the foundational insight that mental illness and metabolic dysfunction share deep biological roots. Neuroinflammation, mitochondrial dysfunction, and insulin resistance are not merely comorbidities of psychiatric disease—they are increasingly understood as drivers of it. This mechanistic overlap helps explain why individuals with serious mental illness face a 10- to 20-year reduction in life expectancy, largely from cardiometabolic disease—a relationship that runs in both directions.

These shared pathways have opened a new therapeutic frontier. Metabolism-based interventions—most notably ketogenic therapy, which has been used for over a century to treat epilepsy by stabilizing brain energy metabolism—are now being studied rigorously for their effects on depression, bipolar disorder, schizophrenia, anorexia, PTSD, ADHD, and beyond. The clinical evidence is accumulating as case series, pilot studies and RCTs are published, and prospective trials are underway at leading academic medical centers around the world.