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Zepbound Is Known for Weight Loss, but Scientists Just Found Something Unexpected
Yahoo Health • • health
Key Points:
- A University of Barcelona mouse study found that tirzepatide, the active ingredient in Zepbound and Mounjaro, activates brown fat, which burns energy to generate heat, suggesting the drug influences metabolism beyond just reducing appetite.
- The study used a pair-feeding design to isolate the drug's effects from calorie reduction, revealing increased thermogenic activity in brown fat and altered lipid metabolism in white fat in treated mice.
- Researchers caution that mouse metabolism differs from humans, but a small 24-week human trial showed increased brown-fat activity in women with obesity treated with tirzepatide, though it did not significantly change resting energy expenditure.
- These findings suggest tirzepatide may help reduce body weight and improve metabolism by activating brown fat, but more research is needed to confirm this mechanism in humans.
