How Does Bariatric Surgery Affect The Digestive Process?
Before Surgery Food is chewed in the mouth, then swallowed, passing through the esophagus to the stomach, (roughly the size of a melon) where stomach acids dissolve it into smaller particles. The liquid (chyme) then passes into the small intestine where enzymes and bile continue the digestive process. The first section is the duodenum, the shortest section. Here, calcium, iron and a few vitamins are absorbed. The second and third sections are the jejunum and ileum, both about ten feet in length. Here, the bulk of food nutrients (vitamins and minerals) and calories are absorbed. After Surgery During all three types of obesity surgery, the size of the stomach is reduced by up to 90 percent, to the size of an egg or even the size of a thumb. Typically, its capacity is 3-4 tablespoons of food. This stomach reduction drastically reduces the quantity of food which can be consumed in one sitting and speeds up satiety. During bypass surgery, the digestive tract below the stomach is also altere
