A 12-ounce plain iced coffee contains 150 calories, 2.5g fat, 30g carbs, and 5g protein, while their vanilla one contains 140 calories and the same amounts of fat, carbs, and protein. Our copycat recipe contains 116 calories, 1.3g fat, 25g carbs, and 1.6g protein for a plain coffee, and 128 calories and the same amounts of fat, carbs, and protein for the vanilla version.