The first step: in the intervention, a dissection is made above the stomach, creating a sachet the size of a walnut, that is to say more or less an ounce, 28 grams of food that is why you lose weight quickly.
The second step: the largest part of the stomach connects with the intestine to perform the Bypass and so the body absorbs less calories to avoid weight gain.
The gastric bypass can be done in two ways. With surgery open, your surgeon makes a large surgical cut to open your belly. Bypass is good by working on your stomach, small intestine and other organs