The so-called 'weight loss injection' (e.g., semaglutide, liraglutide) is a prescription medication originally developed for type 2 diabetes. It reduces appetite and slows gastric emptying, leading to weight loss. In daily life, users typically administer a weekly injection, often experiencing side effects like nausea, diarrhea, or constipation. The effect is dose-dependent and requires accompanying dietary changes and physical activity to maximize results and prevent muscle loss. Importantly, this is a drug, not a supplement. Long-term safety data are still limited, and weight regain after discontinuation is common. Medical supervision is essential. Evidence for efficacy is strong (randomized controlled trials), but study populations are selective. In everyday practice, users should ensure adequate protein intake, monitor hydration, and be aware of potential drug interactions.
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