With other natural flavors. 30 calories per bottle. Non carbonated. Why drink Hydrive Electrolyte Formula? Because whatever those electro things are, they must be good for you. Electrolyte Formula: 100% DV vitamin B3, B5, B6, B12; 11% DV potassium; 16 mg magnesium; 6 g sugar - 30 calories; 160 mg caffeine. Caffeine Content: 160 mg/bottle.