A hormone your gut releases after eating that signals fullness and helps regulate blood sugar. GLP-1 medications mimic this hormone, which is why they reduce appetite and are used for both type 2 diabetes and weight management. "GLP-1" is now used loosely to mean the whole class of these drugs, including ones (like tirzepatide) that also act on other receptors.
Related terms: GIP receptor · Semaglutide · Tirzepatide · Food noise