5 things to know about caffeine powder

July 19, 2014 8:00 AM

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Bulk caffeine powder can be easily bought online. Both Amazon and eBay sell the substance. Pouches can start at more than $7, with just over a pound costing about $15. Users add the powder to drinks for a pick-me-up before workouts or to control weight gain.

The U.S. Food and Drug Administration said the product is essentially 100 percent caffeine. A teaspoon is roughly equivalent to the amount in 25 cups of coffee. The agency cautions that it's almost impossible for users to accurately measure the powder with kitchen tools, and people can easily take a...

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