Glossary · Definition
GLP-1 receptor agonist
GLP-1 receptor agonists are synthetic versions of the gut hormone GLP-1, taken weekly (or daily). They slow gastric emptying and reduce appetite signaling. Originally type-2 diabetes drugs; weight loss became the headline use.
Definition
GLP-1 receptor agonists are synthetic versions of the gut hormone GLP-1, taken weekly (or daily). They slow gastric emptying and reduce appetite signaling. Originally type-2 diabetes drugs; weight loss became the headline use.
What it means
Major drugs: semaglutide (Ozempic for diabetes, Wegovy for weight management, Rybelsus oral), tirzepatide (Mounjaro / Zepbound — also targets GIP receptors, more potent), liraglutide (Saxenda / Victoza, daily, older). Average weight loss in trials: ~15% on semaglutide, ~22% on tirzepatide. Side effects: nausea, fatigue, possible muscle loss without strength training. Not medical advice — talk to your doctor.
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Why it matters
GLP-1s are reshaping how Western medicine treats obesity + cardiometabolic disease. They produce weight loss outcomes far above behavioral interventions alone. Trade-offs: long-term medication (regain typical when stopped), substantial cost, potential muscle loss without resistance training. NOT a quick fix.
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Frequently asked questions
Cost?
$900-1,500/mo US retail, varying insurance coverage. Compounded versions cheaper but less reliable.
Are they safe long-term?
Long-term safety data is still maturing (most drugs have <10 years of broad use). Pancreatitis + thyroid risk warnings exist; talk to your doctor.