Gastric Bypass Surgery      

Gastric bypass surgery involves the creation of a small stomach pouch (about the size of a person's thumb). The small stomach pouch restricts food intake by allowing only a small amount of food to be eaten at one time. In addition, part of the small intestine is rerouted to promote "malabsorption." This alters the digestive process, partially reducing the absorption of nutrients.

"Restriction" and "malabsorption" work together to promote weight reduction and improvement in health. Average excess weight loss 1 year after surgery is approximately 75-85 percent.

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