When it comes to getting the most alcohol for the fewest calories, shots and straight booze on the rocks are the way to go. "There isn't much of a difference between 80-proof hard liquors," Cederquist says. "They all have around the same amount of calories and carbohydrates." And as calories increase along with alcohol content, the difference isn't huge. For instance, a shot of 86-proof whiskey contains 105 calories and a shot of 80-proof vodka contains 97.
However, you also need to keep in mind that the sweeter the liquor, the more calories it typically contains, she says. "If you're looking for a lower-calorie alternative, avoid the flavored vodkas and spiced rums and go for the original or plain option offered," she says. "If you are looking for a flavor boost, try low-calorie mixers like a flavored seltzer or fresh squeezed lemon or lime. This will provide the taste without the calories."
