The Probert Encyclopaedia of Medicine

INSULIN

Insulin is a hormone produced by the pancreas and released into the bloodstream. It promotes the uptake of glucose from the blood by the body cells. A lack of insulin results in glucose being neither consumed as fuel nor adequately stored, but instead the glucose accumulates in the blood until it spills over into the urine. An excess of insulin dangerously decreases the amount of glucose in the blood.
Research Insulin