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Phase 2 trial data (published in New England Journal of Medicine, 2023 ): 24.2% average weight loss at 48 weeks with 12 mg dose 22.8% with 8 mg dose Placebo group lost 2.1% Most recent Phase 3 trial data (TRIUMPH-4, December 2025): 28.7% average weight loss at 68 weeks with 12 mg dose 26.4% with 9 mg dose 58.6% of participants on 12 mg achieved at least 25% weight loss 39.4% achieved at least 30% weight loss For context: These are the highest weight loss numbers reported in any clinical trial for a pharmacological obesity treatment

The glucose-dependence that makes them safe, the central action that drives weight loss, the cardiovascular and renal benefits, and the gastrointestinal side effects all trace back to where the receptor sits and how it signals

Pills are a natural fit if youre needle-averse or travel frequently

Some readers also compare retatrutide with available weight-management medicines

Moderate coffee consumption actually has a mild prokinetic effect, meaning it stimulates colonic contractions

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