Bariatric surgery and T2D remission Weight reducing surgery, i.e. bariatric surgery, is the only intervention that leads to persistent weight loss and is superior above conventional (non-surgical) treatment. Bariatric surgery can be divided into restrictive (gastric band or sleeve) and malabsorptive (biliopancreatic diversion, BD) procedures or a combination of both (Roux-en-Y gastric bypass, RYGB). Currently, RYGB is the most performed bariatric procedure. The international indications for bariatric surgery are BMI > 40kg/m2 or BMI > 35 kg/m2 with co-morbidities (e.g. T2D).