There are a number of bariatric surgery procedures to help you lose weight and lower your risk of medical problems associated with obesity.

Weight-loss (bariatric) surgery contributes to weight loss in two main ways:

• Restriction. Surgery is used to physically limit the amount of food the stomach can hold, which limits the number of calories you can eat.
• Malabsorption. Surgery is used to shorten or bypass part of the small intestine, which reduces the amount of calories and nutrients the body absorbs.