adjustable gastric banding, Gastric sleeve surgery, Roux-en-Y gastric bypass and Biliopancreatic diversion with duodenal switch (BPD-DS). The amount of weight you will lose depends on a number of factors. These factors include, diet, exercise, lifestyle, and your overall commitment to changing old habits. The size the surgeon makes your stomach and the length of your roux limb can make a small difference in weight loss but most of the time these surgical differences are minor. And today, most surgeons have very similar techniques when they perform gastric bypass surgery further minimizing surgical differences. A short comparison of expected weight loss with non-surgical
