Sugar Substitutes: With no cure for diabetes, good food choices are very important. Sugar substitutes are a common choice for diabetics because they are sweet, but most are not sugar products and therefore do not affect blood glucose levels. Many foods that are labeled for diabetics, especially deserts will contain some type of sugar substitute. The right food choices for diabetics may help control diabetes symptoms and keep blood glucose level as close to normal as possible. Some Type 2 diabetics can regulate their blood sugar levels just by diet alone, without the need for insulin or other medication.