Do you know how many calories are in your favorite wine, beer or cocktail?It's not very easy to find out, and those calories can add up really fast.When you buy a can of Coke, it's easy to learn that it contains 140 calories.It's printed right on the can as part of the nutritional information. As Christopher Waldrop of the Consumer Federation of America explained, "There is no standardized format which really provides consumers with the alcohol that is in a particular beverage, and with the calories and carbohydrates that is in that beverage."