Nutritional Info for Java Trading Peak High caffeine coffee unsweetened. Serving size: 1 can, calories: 10, total fat: 0g, Sodium: 90 mg., Total Carbohydrate 2 g., Total Sugars: 0 g. included 0 g. of added sugar; Protein: less than 1 g. Potassium 260 mg. Not a significant source of saturated fat, trans fat, cholesterol, dietary fiber, vitamin D, calcium and iron.