Osmosis video - Insulin

Insulin is a hormone that helps the body to metabolize sugar (glucose). It is made by the pancreas, specifically the islets of Langerhans.

Insulin controls how much glucose is in the blood. When you eat, your body breaks down food into glucose and other nutrients. These enter the bloodstream and signal the pancreas to make insulin. The insulin then allows the glucose to enter cells in the body, where it is used for energy or stored for later use.