Name the disease caused by the deficiency of insulin hormone in the body.

The disease caused by the deficiency of insulin hormone in the human body is diabetes. Insulin is secreted by the specialized cells of pancreatic glands known as Islets of langerhans. Insulin controls the blood sugar level in blood. Diabetes causes large amount of sugar level in the blood and urine. That is why, diabetic patients should take less amount of sugar in diet.

Diagram showing working pancreas in the body