Incretin

Short answer

Incretins are intestinal hormones released after meals that amplify insulin secretion in a glucose-dependent manner.

In one sentence for patients

Full definition
Incretins are intestinal hormones released after meals that amplify insulin secretion in a glucose-dependent manner.

GLP-1 and GIP are the main incretins. GLP-1 receptor agonists mimic GLP-1; tirzepatide activates both GIP and GLP-1. DPP-4 inhibitors prolong natural incretin action by a different mechanism. In India, these concepts appear in RSSDI and ICMR guidance for type 2 diabetes and obesity care—always confirm details with your prescribing physician.

Dr. Ananya Mehta

Medically reviewed

Dr. Ananya Mehta, MD, DM Endocrinology

Consultant Endocrinologist, India

This article has been reviewed by our medical advisory team, including endocrinologists, internal medicine specialists, and cardiologists, and is based on current scientific evidence and Indian clinical guidelines. Last reviewed: June 2026.

Last medically reviewed: Jun 15, 2026

Editorial policy · Medical advisory team

Related terms