It is the most effective and permanent weight loss surgery technique among all obesity surgery operations. Especially in the treatment of morbid obesity and type II diabetes mellitus (DM) , SADI-S is obviously superior and provide a much stronger and lasting weight loss comparing with the Mini Gastric Bypass and the Roux en Y Gastric Bypass operations. It is the most effective and permanent weight loss surgery technique among all obesity surgery operations. Especially in the treatment of morbid obesity and type II diabetes mellitus (DM) , SADI-S is obviously superior and provide a much stronger and lasting weight loss comparing with the Mini Gastric Bypass and the Roux en Y Gastric Bypass operations.Protein, vitamin and mineral loss is less common as sadi-s surgery due to the less restriction of absorption.Sadi-S surgery does not intervene in the pylorus muscle and the volume of the stomach is not too small, the patient’s eating does not cause difficulties. if attention is paid to the calorie taken, weight loss is faster.SADI-S is done by laparoscopy (Keyhole surgery)• 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.• SADI-S operation provides weight loss and treatment without diet and sports