Glucose-dependent insulinotropic peptide (GIP) is a hormone produced in the small intestine. It plays a crucial role in regulating blood sugar levels by stimulating the release of insulin from the pancreas when glucose is present in the bloodstream. This helps lower blood sugar levels after eating. GIP is part of a group of hormones known as incretins, which enhance insulin secretion in response to meals. In addition to its insulin-stimulating effects, GIP also influences fat metabolism and may have a role in appetite regulation. Understanding GIP is important for managing conditions like diabetes.