Kcal is the amount of energy a substance can supply to
the body. Water has zero calories. Therefore the kcal from this beverage would
only be coming from the sugar and alcohol. Assuming that the sugar is raw and the alcohol is in pure form
of ethanol, therefore the amount of kcal per gram of each substance is:
Sugar = 4 kcal / gram
Alcohol = 7 kcal / gram
Therefore the total calories is:
calories = 20 gram * (4 kcal / gram) + 5 gram * (7 kcal /
gram)
calories = 80 kcal + 35 kcal
calories = 115 kcal
