How much caffeine is in a 5-hour energy?
How much caffeine is in a 5-hour energy? Caffeine levels in 5-hour Energy are: Decaf (6 mg), Original (215 mg), and Extra Strength (242 mg). Up to 400 milligrams (mg) of caffeine a day appears to be safe for most healthy adults. That’s roughly the amount of caffeine in four cups of brewed coffee, 10 […]
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