Semaglutide and tirzepatide are real drugs built on real incretin physiology, not a fad and not magic. How a gut hormone with a two-minute half-life became a weekly injection with double-digit percentage weight-loss effect sizes, what the honest side-effect and muscle-loss data actually show, and what happens metabolically when you stop taking it.
Glp-1
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GLP-1 Agonists, Honestly -
The Huberman Lab Peptides Episode, Reviewed: What Dr. Bakri Said and What Survives Scrutiny In June 2026, Andrew Huberman spent nearly three hours with physician Abud Bakri walking through BPC-157, GHK-Cu, epithalon, pinealon, thymosin alpha-1, GLP-1s, and retatrutide. The episode is a genuinely useful map of what people are injecting and why. It is also a case study in how conversational time can flatten a very steep evidence gradient. A peptide-by-peptide fact-check of the claims, the mechanisms, and the regulatory maze in between.