GLP-1 has several key functions: 1. Insulin Secretion: It stimulates the pancreatic beta cells to release insulin. 2. Inhibition of Glucagon: It suppresses the secretion of glucagon from pancreatic alpha cells. 3. Gastric Emptying: It slows down gastric emptying to modulate the rate of nutrient absorption. 4. Appetite Regulation: It acts on the brain to promote satiety and reduce food intake.
