Gastric Emptying Time, (the time it takes for the stomach to empty), is normally 1 to 4 hours, depending on the amount and kinds of food eaten. When eaten alone, carbohydrates leave the stomach most rapidly (within ONE HOUR OR FASTER), followed by protein (which takes about TWO HOURS) and then fat (taking THREE TO FIVE HOURS to leave the stomach). When combining a protein with a carbohydrate, both the protein and the fat contained in the protein (since most proteins have some fat in them) cause