Only 5 calories per serving! 90% Fewer calories than leading beverages. Natural flavor. Sensible Solutions: Sugar free, 0 g carbs. Sweetened with Splenda. Contains 0% juice. 99.9% caffeine free. Crystal Light ready to drink bottles let you enjoy light, fruity-tasting refreshment anytime, anywhere. Crystal Light is a delicious way to get the benefits of water and is sugar free, just 5 calories and 0g carbs per serving.