Diet Dr Pepper offers the same 23 flavors of regular Dr Pepper without the calories 35 cans, 12 oz. each Perfect for vending, concession and resale If you enjoy the 23 flavors that regular Dr Pepper has to offer but don't want the calories, Diet Dr Pepper is your beverage of choice. With a taste so unique, you won't be able to distinguish all the different flavors but one thing you will know is that it's calorie free. Try one today and enjoy the unbelievably satisfying taste.