What Is Insulin?

An insulin vial with a needle(BlackDoctor.org) — The relationship between diabetes and insulin is complex – meaning that there is a lot of insulin information out there, some correct, some false.

Here are answers to some of the most common insulin-related questions:

1. What is insulin?

“Insulin is a hormone produced by the beta cells in the pancreas,” says Jennifer L. Miller, MD, a pediatric endocrinologist at La Rabida Children’s Hospital in Chicago. “When you eat, your body turns carbohydrates into glucose, or sugar, which enters the bloodstream. Insulin is the key that helps get glucose from the bloodstream into the cells, so the cells can use the glucose for energy,” explains Dr. Miller.