Not only does Lt. Blender's All-Natural Sugar Free Margarita taste great, but it is all-natural as well - no artificial colors or flavors. They've developed their own special recipe using all-natural erythritol and rebiana (Stevia) to keep their line of All-Natural Sugar Free Cocktails in a Bag tasting great. Only 23 calories and 5 grams of carbohydrates per serving. Just add tequila and triple sec straight into the bag, top it off with water, shake, and freeze for a frozen cocktail. Or if you just can't wait, serve it straight away over ice.