Wellness, Actually with Emily Oster & Perry Wilson, MD What's the deal with GLP-1s?
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Mar 5, 2026 They dig into the strange origins of GLP-1 drugs, from Gila monster venom to modern weekly injectables. Discussion covers how these medicines changed weight treatment, brain and behavior effects, and surprising cosmetic and societal ripple effects. They also examine dosing practices, side effects, long term unknowns, and how the healthcare and food worlds are already shifting.
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Most Extra Benefits Likely From Weight Loss
- Many non-diabetes benefits (cardio, kidney, cancer) likely reflect weight-loss downstream effects rather than direct drug action.
- Some trials suggest benefits beyond weight change, but disentangling mechanisms remains hard.
Do Strength Training And Prioritize Protein
- Preserve muscle during GLP-1 weight loss by prioritizing strength training and keeping protein intake high.
- Maintain protein portions while reducing calories and add resistance exercise to limit the typical 30–50% muscle loss of weight loss.
Stopping GLP-1s Usually Causes Partial Weight Regain
- Trials show substantial regain when GLP-1s stop: roughly half the lost weight returns after discontinuation.
- Real-world practice often uses maintenance or "microdosing" under doctors to sustain weight, but randomized data on that is limited.