Oatmeal can help you lower you cholesterol because it is slowly digested. It’s a complex carb so the sugars break down slowly. It’s also a soluble fiber. Being a soluble fiber, as it moves along the intestine track it stays in the form of a thick sludge which essentially just kind of cleans you right out. So it’s kind of like a broom, as it’s passing through the digestive system it’s sweeping out the bad cholesterol.