Nutritional Analysis: 1 muffin (prepared with reduced-fat baking mix and reduced-fat sour cream) equals 154 calories, 3 g fat (2 g saturated fat), 24 mg cholesterol, 251 mg sodium, 28 g carbohydrate, 1 g fiber, 3 g protein. Diabetic Exchanges: 1 starch, 1 fruit, 1/2 fat.