OverviewInsulin is a hormone secreted by the pancreas in response to increased glucose levels in the blood.
Update Date 11/25/2014
Updated by: Robert Hurd MD, Professor of Endocrinology and Bioethics at Xavier University, Cincinnati, Ohio. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.