Say yes to cereal
"Oatmeal is a great high-fiber way to start the day," says Tami Ross, president-elect of the AADE. It's also surprisingly speedy: A single serving of oatmeal takes just three minutes to cook in the microwave, and instant oatmeal packets are ready in seconds. Ready-to-eat cold cereals are also a good idea. Look for products that are low in fat and sugar and contain at least 5 grams of fiber (which, studies show, helps to control blood sugar) per serving. One example: shredded wheat.