How many calories are in Coke Light?
An eight-ounce serving or Coke Light contains less than one calorie.

What makes up the fraction of a calorie in Coke Light?
Aspartame, caramel color and citric acid are all ingredients of Coke Light. Components of each of these contribute to the caloric content of Coke Light.

Why does the label state that Coke Light contains zero calories?
Because the amount of calories is under five, the U.S. Food and Drug Administration (FDA) requires that to round the amount of calories to zero on the Nutrition Facts panel. Hence, Coke Light is label as Zero Sugar.

Does Coke Light contain sugar?
Coke Light contains 0.1 grams of sugar (carbohydrates), which is derived from the caramel color.