Nutritional Analysis: One piece (prepared with reduced-fat margarine, reduced-fat graham crackers, low-fat frozen yogurt and reduced-fat whipped topping) equals 190 calories, 6 g fat (3 g saturated fat), 3 mg cholesterol, 122 mg sodium, 32 g carbohydrate, trace fiber, 2 g protein. Diabetic Exchanges: 1 starch, 1 fruit, 1 fat.