Are sugar replacers (polyols) useful for people with diabetes?

Because these sweeteners have lower caloric values, they may help people with diabetes achieve their weight goals. Sugar replacers (polyols) also cause smaller increases in blood glucose and insulin levels than do sugars and other carbohydrates. Therefore, snacks sweetened with them may be useful. People with diabetes should consult their physician or other health professional about the usefulness of sugar replacers (polyols) in their daily meal plan.

Source: Calorie Control Council