Especially useful is the chart telling you how much caffeine is in each energy drink – since the cans rarely display that info. The vast majority of energy drinks apparently have 75-80 mg of caffeine per 8 fluid ounces (for comparison’s sake, a cup of coffee has 100 mg) – including Red Bull, meaning that paying the same price or more for that smaller can isn’t actually going to help you stay up any later.
The always fantastic magazine Consumer Reports (really, it has great info and reviews!) published a little article comparing some of the popular energy drinks out there.
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