Bariatric surgery (or weight loss surgery) is the medical term for a variety of procedures dealing with obesity. Long term weight loss through the standard of care procedures ( Roux en-Y bypass , sleeve gastrectomy , and biliopancreatic diversion with duodenal switch ) is largely achieved by altering gut hormone levels responsible for hunger.

Bariatric surgery (or weight loss surgery) is the medical term for a variety of procedures dealing with obesity. Long term weight loss through the standard of care procedures ( Roux en-Y bypass , sleeve gastrectomy , and biliopancreatic diversion with duodenal switch ) is largely achieved by altering gut hormone levels responsible for hunger.