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.
Learn more in our guide:
GLP-1 Explained: A Complete Guide for Indian Patients →
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