Oatmeal is good for diabetics. It has twice as much fiber as wheat and is high in complex carbs. It should be part of a balanced diet. Is oatmeal good for diabetics, and if so, why? Oatmeal is a good breakfast for people with diabetes. It takes longer to digest, but it’s easy to mix and can be eaten in a hurry. When you cook it, the starches and proteins are converted into sugar, which is absorbed slowly by the bloodstream, providing a slow, steady release of energy. That is a good thing for people with diabetes, and it’s why it’s so good for diabetics.