A light beer (approximately 100
calories) or a glass of reduced-calorie
wine (about 90 to 100
calories) are other lower-calorie options.
But if you want to know why some alcoholic beverages contain more calories than others, read on.
Pure alcohol contains 7 calories per gram -- that's less than a gram of fat, which has 9 calories, but more than protein and carbs, which have 4 calories per gram each -- but other variables of your drink influence the calorie count.