Red Bull Energy Drink, 8.4 fl oz Can

What’s inside the can: Caffeine was well known for its stimulating effects by ancient civilizations who consumed it from natural sources like tea, coffee, cacao beans & cola nuts. One 8.4 fl oz can of Red Bull Energy Drink contains 80 mg of caffeine. Taurine is an amino acid, naturally occurring in the human body and present in commonly consumed foods. Water, naturally, water is a key ingredient of Red Bull.