Ingredients: Caffeine, Taurine, B-Group Vitamins, Sugars, Alpine Water. • One 250 ml can of Red Bull Energy Drink contains 80 mg of caffeine, about the same amount as in a cup of home-brewed coffee. • The amount of sugars in a can of Red Bull Energy Drink is comparable to the level of sugars in an equivalent amount of apple or orange juice – 11 g per 100 ml.