Nutritional Facts 1 stuffed portobello (calculated without raisins) equals 221 calories, 12 g fat (4 g saturated fat), 68 mg cholesterol, 435 mg sodium, 14 g carbohydrate, 2 g fiber, 14 g protein. Diabetic Exchanges: 2 fat, 1 lean meat, 1 vegetable, 1/2 starch.