Uploaded June 2025 | Updated September 2026, 2 weeks ago

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Dr. Andrew Huberman discusses how gut-produced serotonin signals through the vagus nerve to the brain, raising brain serotonin levels and improving mood and overall well-being.

Dr. Andrew Huberman is a tenured professor of neurobiology and ophthalmology at Stanford University School of Medicine and host of the Huberman Lab podcast.

Watch the full episode: youtu.be/CLbVW3Pj46A?si=w0Hv_kTtWf_sPAfg
Show notes: go.hubermanlab.com/K36mJhe

*Timestamps*
00:00 Serotonin & Wellbeing
00:21 Serotonin Production in the Gut
00:53 Communication to the Brain
01:30 Enterochromaffin Cells & Tryptophan
03:10 Impact of Gut Serotonin on Brain Function
04:29 Gut Health & Serotonin Levels
04:43 Dietary Recommendations for Gut Health
07:07 Probiotics & Mood Improvement
07:50 Scientific Evidence & Clinical Trials

Disclaimer & Disclosures: hubermanlab.com/disclaimer