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Find yourself cracking open an energy drink when you need some extra pep in your step? You¡¯re in good company. Energy drinks are second only to multivitamins when ranking the most popular dietary supplements among teens and young adults in the United States, writes the National Institutes of Health.

With cans lining shelves from grocery stores to gas stations, there are plenty of options to help you perk up after a sleepless night...