Its mildly bitter taste, fresh, fruity aroma, bright colour and exceptional clarity are obtained using only the purest water, hops and barley malt. Heinken light reportedly has: 99 calories per 12 oz. bottle and 6.8 grams of carbohydrates. The beer has less calories, less carbohydrates, and less alcohol than lager beers such as the Heineken Pilsener.