The keto diet is a great way to lose weight, and the addition of booze is a welcome bonus. Of course, there’s plenty of sugar in most cocktail recipes, so you have to be careful. Keto Tom Collins is a low carb version of the classic Tom Collins cocktail. This refreshing drink is the perfect summer cocktail. This drink recipe is perfect for the keto diet as it is made with simple low carb ingredients and won’t spike your blood sugar levels.