Continuing research may lead to new approaches to diabetes diets. Because one goal of a diabetes diet is to maintain normal blood glucose levels, it would be helpful to have reliable information on the effects of foods on blood glucose. For example, foods that are rich in carbohydrates, like breads, cereals, fruits, and vegetables break down into glucose during digestion, causing blood glucose to rise. However, scientists don't know how each of these carbohydrates affect blood glucose levels. Research is also under way to learn whether foods with sugar raise blood glucose higher than foods with starch.
Experts do know that cooked foods raise blood glucose higher than raw, unpeeled foods.
A person with diabetes can ask a doctor or nutritionist about using this kind of information in diet planning.