Oatmeal, oat bran and high-fiber foods. Oatmeal contains soluble fiber, which reduces your low-density lipoprotein (LDL), the bad cholesterol. Soluble fiber is also found in such foods as kidney beans, apples, pears, barley and prunes. Soluble fiber can reduce the absorption of cholesterol into your bloodstream. Five to 10 grams or more of soluble fiber a day decreases your total and LDL cholesterol. Eating 1 1/2 cups of cooked oatmeal provides 6 grams of fiber. If you add fruit, such as bananas, you'll add about 4 more grams of fiber.