With other natural flavor. 5 calories per serving. 90% fewer calories than leading beverages. Caffeine to help enhance mental alertness. Color your world with Crystal Light and transform ordinary water with fabulous fruit flavors and tantalizing teas. Each sip is the perfect way to refresh, renew and satisfy your thirst for something different. It's lively & unexpected just like you! This product 5 calories. Leading beverages 70 calories. Good source of vitamin E & zinc. 40 mg caffeine per serving. Low sodium.