The term Ileal Interposition, in brief, is a kind of exchange of the initial and final parts of the small intestine and transforming the stomach in banana shape.This surgery is the method used in the treatment of Type 2 Diabetes ONLY to the patients who has a Pancreatic Insulin reserveThis operation is a different surgery than obesity surgery.The mechanism of action of this surgery is to disable the hormones that cause insulin resistance and to increase hormone levels that increase insulin sensitivity.Vitamin and mineral deficiencies are not seen and followed as in the by-pass operations of the obesity surgery because this operation technique is not performed by intestine by-pass and no need to use vitamins and minerals containing pills during whole life.In the ileal interposition surgery, , the liquid consumption starts from the third of the operation.Within 6 months to 1 year completely free nutrition can be passed. With this surgery, diabetes is controlled within a few weeks to a few months and drug treatment can be given at low dosage according to the patient condition.• Due to the keyhole surgery application (laparoscopy), the healing process is very rapid and the pain is at minimal level• This surgery permanently terminates type 2 diabetes mellitus (DM) and Diabetes is controlled withing a few weeks to few months after this surgery.• Ileal Interposition with Sleeve Gastrectomy operation provides weight loss and treatment without diet and sports