Gastric By-pass surgery is a type of weight loss surgery that is usually done in case of obese and diabetic individuals. In this surgery, stomach is divided into two pouches, one upper smaller pouch and one bigger lower pouch, which are then arranged to be connected by the small intestine using a Roux-en-Y anastomosis. This is mainly done to reduce the size of stomach, and also to reduce its capacity to stretch itself.
After the gastric by-pass surgery, the size of the stomach gets smaller. Hence, individuals will feel full with less amount of food. The food the gastric by-pass surgery patients will eat, will not go to some parts of the stomach that has been disconnected as a pouch from the rest. The less occupied food will go to intestine to get absorbed. This will result in lesser body calories.
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