Rethinking Serotonin And Depression: What SSRIs Really Do & What May Work Better

Do SSRIs help your brain? SSRI medications are among the most widely prescribed antidepressants, but what if we’ve misunderstood how they work? In this interview, Dr. Bret Scher sits down with biochemist and nutrition scientist Dr. Chris Masterjohn to explore a deeper, more systemic view of mental health and how we treat it. Dr. Masterjohn reveals why serotonin isn’t just a “mood booster,” how SSRIs may be disrupting mitochondrial function, and why focusing on lifestyle strategies that support brain energy metabolism could unlock new paths for treating depression. 🔍 What you’ll learn: Chris’s personal journey from veganism to carnivore The importance of testing for nutrient deficiencies How mitochondria influence mood and cognition Why SSRIs may disrupt brain energy metabolism The truth about serotonin and morning sunlight Why exercise & nutrition often outperform medication What SSRIs really do (and what they don’t) If you've ever questioned the serotonin theory of depression, or sensed there’s more to the story than what mainstream medicine tells us, this conversation fills in some of the missing pieces. 🔎 Have questions about how to apply metabolic therapies effectively? Submit them at https://www.metabolicmind.org/questions/ to be featured in a future Metabolic Mailbag episode. 👉 Subscribe to Metabolic Mind for more interviews, research, and updates in the field of metabolic psychiatry. Expert Featured: Dr. Chris Masterjohn https://www.chrismasterjohn-phd.com/ https://substack.com/@chrismasterjohnphd https://x.com/ChrisMasterjohn   / chrismasterjohn     / chrismasterjohn   Resources Mentioned: Substack: Prozac is a Performance Enhancing Drug https://chrismasterjohnphd.substack.c... Mitome: Mitochondrial Analysis https://www.mito.me/ Free CME Clinician Trainings: Are you a clinician who would like to learn more about the science behind these therapies and how to implement them in practice? Earn CME with our growing library of courses from some of the top experts in the field including Dr. Chris Palmer, Dr. Georgia Ede, Dr. Matthew Bernstein and Dr. Bret Scher with more coming soon. Our courses have been made FREE by grants from Baszucki Group, so we can spread these powerful therapies as widely as possible. Earn CME/CNE credits: https://www.metabolicmind.org/for-cli... Follow our channel for more information and education from Bret Scher, MD, FACC, including interviews with leading experts in Metabolic Psychiatry. Learn more about metabolic psychiatry and find helpful resources at https://metabolicmind.org/ About us: Metabolic Mind is a non-profit initiative of Baszucki Group working to transform the study and treatment of mental disorders by exploring the connection between metabolism and brain health. We leverage the science of metabolic psychiatry and personal stories to offer education, community, and hope to people struggling with mental health challenges and those who care for them. Our channel is for informational purposes only. We are not providing individual or group medical or healthcare advice nor establishing a provider-patient relationship. Many of the interventions we discuss can have dramatic or potentially dangerous effects if done without proper supervision. Consult your healthcare provider before changing your lifestyle or medications. Timestamps: 0:00 - Introduction to Dr. Chris Masterjohn and his work in mitochondrial health and SSRIs. 5:25 - How does Dr. Masterjohn separate his own personal experience with nutrition from his scientific research? 9:13 - Should the first step of optimizing brain health be a full nutrient and genetic profile? If not, what should be? 15:03 - The importance of tracking your diet, regardless of diet type. 17:50 - Are there particular micronutrients that most people should be concerned about for mental health? 20:27 - How SSRIs work and the root cause of depression. 27:09 - Why early morning sunlight is important for brain health. 29:50 - The importance of a consistent sleep schedule for brain health. 32:17 - What should mental health research and care focus on over the next 5-10 years? 35:43 - Where can people find more from Dr. Chris Masterjohn and read his work?