Gastric Bypass has been demonstrated to be effective, having more than 20 years of proven success. You will see rapid initial weight loss, and most who receive this procedure maintain the majority of their weight loss several years after surgery.
This surgery is more invasive than other surgery options. It consists of making the stomach smaller by creating a small pouch at the top of the stomach using surgical staples. The smaller stomach is then connected directly to the middle portion of the small intestine (jejunum) that has been detached from the upper portion of the intestine (duodenum). This causes food to bypass the rest of the stomach and the upper portion of the small intestine.
This surgery will alter your normal digestive process, causing fewer calories and nutrients to enter the body, which can lead to nutrient deficiencies and requires a permanent change in eating habits.