Home - Caffeine - Energy Drinks Nuun Sport Nuun Sport Caffeine 40 mg per 473.176 ml Switch to fl oz Calories: 15 kcal You Might Also Like:Phoenix Energy ShotNutramint Smart SerumReed’s Ginger Energize ShotForto Organic Coffee ShotNeu Nootropic ShotX-Mode Energy ShotPerformance CaffeineKirkland Energy ShotBalance Energy ShotRed Thunder Energy Shot