Gastric Bypass

Weight-Loss Surgery Options

Gastric bypass surgery is a common and well-known weight-loss surgery. To determine if gastric bypass surgery is an appropriate weight-loss option for you, your doctor will consider your weight-loss goals and specific health needs. While gastric bypass is a powerful tool in weight loss, successful weight loss and maintenance requires commitment to lifestyle changes in diet and exercise.

What Is Gastric Bypass Surgery?

The gastric bypass procedure creates several changes in the way your food is stored and digested. During the procedure, your surgeon begins by stapling a small top portion of the stomach closed, separating it from the lower part of the stomach. This creates a small stomach pouch, which will store food after surgery. The surgeon then brings up the small intestine and joins this to the new, smaller pouch. After surgery, food passes directly from your new smaller stomach to the small intestine, changing how food is digested.

Gastric bypass works by two methods: malabsorption and restriction. Restriction describes the process of restricting how much food can be eaten at one time. This is done by creating the smaller stomach pouch during surgery. Malabsorption changes how your body breaks down food. After gastric bypass, you’ll absorb fewer nutrients and minerals from the food you eat, further aiding in weight loss.

Pros and Cons of Gastric Bypass


  • Rapid weight loss and improvement of weight-related medical problems
  • A popular weight-loss surgery


  • Higher risk of complications than other weight-loss surgeries
  • Procedure is not reversible

Learn More

To understand more about adjustable gastric band surgery at Saint Vincent Hospital, click here to connect with a weight-loss specialist today.

Weight loss surgery may be an option for adults with a body mass index (BMI) equal to or greater than 40, or equal to or greater than 35 with serious health problems related to obesity. Weight loss surgery is considered safe, but like any surgery, it does have risks. Consult with your physician about the risks and benefits of weight loss surgery.

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