Type 1 diabetes, also called juvenile diabetes or insulin dependent diabetes, is much less common than type 2 diabetes. Type 1 diabetes may be caused by an inflammatory autoimmune disorder of the pancreas and is not caused by lifestyle.  In type 1 diabetes, your pancreas doesn't make the correct amount of insulin your body needs.  People with type 1 diabetes are usually diagnosed in childhood or early adult hood and require insulin to control their condition.  Not every person who uses insulin has type 1 diabetes.  Some people with type 2 diabetes require insulin to manager their disease.