Glossary term
Gastric Bypass
Reference only — not medical advice. See disclaimer.
A bariatric surgical procedure, most commonly performed as a Roux-en-Y gastric bypass, in which a small stomach pouch is created and connected directly to the small intestine, bypassing a large portion of the stomach and the first section of the small intestine. It induces weight loss through both restriction of food intake and some degree of malabsorption of calories and nutrients.