Since the higher than normal blood sugar levels associated with prediabetes can develop into type 2 Diabetes, it is important for people to take the necessary steps to make healthy changes in their diet. In general, the prediabetes diet includes options that are low in calories and fat, but high in fiber. They should also focus on fruits, vegetables and whole grains. People with prediabetes should limit their intake of fatty foods and desserts, since this will make them gain weight and increase their blood sugar. Lean meats, non-fat dairy items, dried beans and fish should also become a staple in the diet of someone who has prediabetes.