Here's what makes your cocktails heavy calorie bombs: A big glass and a lot of mixers (sour mix, tonic or juice, for example).
It makes sense that the more stuff you put in a glass, and the bigger that glass is, the more calories your cocktail will have.
But you can keep your calorie count low by using simple, fresh and restrained ingredients -- in the video above, Cooking Light shows that you don't need much to make a full-bodied cocktail.
They show you how to make a low-calorie watermelon margarita (105 calories), a michelada (112 calories) and a vera kollans (156 calories).
Give it a shot, and as always, drink (calorically) responsibly.