Individually wrapped pieces. Not a low calorie food. Lactitol (a sugar substitute) is a slowly metabolized carbohydrate that generally causes only a small rise in blood glucose levels. Dietary Exchanges: 1 Carbohydrate + 2 Fat. Exchange value for the carbohydrate is calculated using 1/2 the normal value because Lactitol is the primary source of carbohydrates. Dietary Exchanges based on Exchange Lists for Meal Planning Copyright 2003, by the American Diabetes Association and the American Diabetic Association.