There are mainly two types of diabetes - type I and type II. Type I diabetes, also called insulin-dependent diabetes, occurs mostly in children as a result of autoimmune disorders. That is, the body’s immune system destroys the insulin producing beta cells of pancreas. Type II diabetes, also known as non-insulin-dependent diabetes, occurs in adults as a result of lower insulin level or poor utilization of insulin. Gestational diabetes is another type that occurs in pregnant women. Type II is the most common form - it makes 90-95% of all diabetic cases.