With the gastric bypass surgery, Dr. Kennedy creates a little pouch and divides it away from the old stomach, connecting it to the small intestine. The gastric bypass procedure uses a combination of malabsorption and restriction. The patient no longer absorbs food where they normally would – the process starts much further down the digestive tract. The pouch created is about the size of two fingers – it can only hold an ounce or two of food. When the procedure is first done, a single egg can leave you full.