Lowest calorie and carb alcohol : As per UCLA, there are 7 calories per gram in Alcohol , which is more calorie-dense than protein and carbs, so it is wise to limit your intake. Any type of Liquor (gin, vodka, whiskey and rum) has roughly the same caloric content. Whereas, 80-proof alcohol has less calories than 100-proof. Calories additionally. Super simple to make, just add calorie free club soda to taste, giving you bubbles and more to drink. White wines tend to be lower in calories, but most of it depends on alcohol content. Tip: Use a large wine glass, or a giant wine glass so you have plenty of room for wine and the club soda. Total calories: 75 per 10oz. Malibu Rum & Diet Cola.