GLP-1 receptor agonist
A class of medication that mimics the gut hormone GLP-1 to reduce appetite, slow gastric emptying, and regulate blood sugar.
GLP-1 receptor agonists (GLP-1 RAs) are medicines that imitate glucagon-like peptide-1, a hormone the gut releases after eating. By activating GLP-1 receptors, they signal fullness to the brain, slow how quickly the stomach empties, and help control blood sugar. That combination reduces appetite and the intrusive food thoughts many people call food noise, which is why drugs like semaglutide (Ozempic, Wegovy) and the dual agonist tirzepatide (Mounjaro, Zepbound) produce significant weight loss. When the medication stops, this signaling fades and appetite rebounds.