Ozempic (semaglutide) is a glucagon-like peptide-1 (GLP-1) receptor agonist, meaning that it mimics the actions of GLP-1 hormone. GLP-1, which is released after eating, slows gastric emptying and enhances insulin secretion to regulate blood glucose. By acting on GLP-1 receptors in the brain’s appetite-control centers, Ozempic additionally reduces hunger and increases feelings of fullness, leading to decreased food intake and weight loss.