gastric bypass

noun

: a surgical bypass operation that typically involves reducing the size of the stomach and reconnecting the smaller stomach to bypass the first portion of the small intestine so as to restrict food intake and reduce caloric absorption in cases of severe obesity compare gastric banding

Examples of gastric bypass in a Sentence

Recent Examples on the Web

Although doctors – and even parents – don’t always agree, Fox believes that weight-loss medications and surgical procedures such as gastric bypass or sleeve gastrectomy should be an option for children. —Jen Christensen, CNN, 10 Sep. 2024

The most comparable shift in modern weight-loss treatment is probably the peak of gastric bypass or gastric sleeve surgeries in the ‘90s and early 2000s. —Kara Nesvig, Allure, 12 Aug. 2024

Some instances that require additional consideration for vitamin D include the following: Gastric procedures: Certain gastric procedures, like gastric bypass, affect the upper small intestine, where vitamin D is absorbed. —Amy Brownstein, Ms, Rdn, Verywell Health, 10 July 2024

People who are hospitalized or who have had gastric bypass surgery may also become deficient. —Christie Aschwanden, Scientific American, 1 Jan. 2024

Word History

First Known Use

1967, in the meaning defined above

Medical Definition

gastric bypass

noun

: a surgical bypass operation performed to restrict food intake and reduce absorption of calories and nutrients in the treatment of severe obesity that typically involves reducing the size of the stomach and reconnecting the smaller stomach to bypass the first portion of the small intestine

especially : roux-en-y gastric bypass