Can Red Bull cause dehydration?
Red Bull Energy Drink cannot lead to dehydration and nothing within Red Bull Energy Drink has a dehydrating effect. This was confirmed by the European Food Safety Authority (EFSA) in their scientific opinion of 2009.
However, Red Bull Energy Drink is a functional beverage and not a sports drink for rehydration. Although normal consumption of Red Bull Energy Drink also provides water to the body, it has not been formulated to deliver re-hydration. Therefore, enough water should be consumed during intense exercise.