After surgery, the band can be adjusted to slow or speed up the digestion of food in the stomach. For this reason, it is also called an adjustable stomach band. When the belt is filled with liquid, it narrows, so the passage of food slows down.
Gastric band is an operation to lose weight. One places a band around the stomach to create a small pouch at the top of the stomach. After eating a small amount, the patient feels full, so the foods consumed are directly reduced.