How does obesity surgery reduce weight?
Gastrointestinal surgery for obesity, also called bariatric surgery, alters the digestive process so as to achieve rapid weight loss. The operations can be divided into three types: restrictive, malabsorptive, and combined restrictive/malabsorptive. Restrictive weight loss surgeries limit food intake by creating a narrow passage from the upper part of the stomach into the larger lower part, reducing the amount of food the stomach can hold and slowing the passage of food through the stomach. Malabsorptive weight loss surgeries do not limit food intake, but instead exclude most of the small intestine from the digestive tract so fewer calories and nutrients are absorbed. Malabsorptive weight loss surgeries, also called intestinal bypasses, are no longer recommended because they result in severe nutritional deficiencies. Combined operations use stomach restriction and a partial bypass of the small intestine. Am I a Candidate for obesity Surgery? You may be a candidate for weight loss surge
