Harvard psychiatrist Dr. Chris Palmer argues mental illness stems from metabolic dysfunction, not genetics alone—and reveals how food additives, ultra-processed ingredients, and fasting-based diets can dramatically improve anxiety, depression, bipolar disorder, even schizophrenia. His personal mission, sparked by his mother's untreated psychosis, challenges everything psychiatry teaches about treatment. 93% of Americans have abnormal metabolic biomarkers (high triglycerides, low HDL, insulin resistance, high blood pressure, abdominal obesity), linking physical and mental health dysfunction.