Caffeine[edit]
Main article: Caffeine
The caffeine content of a single can of Red Bull is 80 mg/250 ml (32 mg/100 ml).[25][26] This is about the same as one cup of coffee, or slightly less depending on the brewing method.[27] The actual caffeine level in Red Bull can vary depending on country, as some countries have legal restrictions on how much caffeine is allowed in drinks. As is the case with other caffeinated beverages, Red Bull drinkers may experience adverse effects as a result of overuse caffeine intoxication.