Using a specialised laparoscopic stapler, almost 80% of the stomach is removed during the procedure. This makes the process quick and bloodless by stapling the stomach on both sides and cutting in between. The stomach’s initial 2000 cc volume is decreased to only 150–200 cc. The amount of food that can be eaten at one sitting is significantly decreased as a result.
Additionally, stomach removal lowers hunger hormone levels (ghrelin). This encourages early satiety and aids in weight loss. Additionally, once food is taken, the intestines move through it more quickly, releasing hormones that speed up metabolism and burn fat stores. Additionally to accelerating weight loss, this aids in the remission of metabolic illnesses including diabetes. For this operation, up to 70% of the excess weight loss over five years is anticipated. Although there is still a paucity of long-term evidence beyond this time frame, the preliminary findings appear encouraging.