FDA Cracks Down on Powdered Caffeine Due to Safety Concerns

The regulatory agency sent letters to manufactures of the caffeine product, telling them that it presents an unreasonable risk to consumers.
2:23 | 09/02/15

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Transcript for FDA Cracks Down on Powdered Caffeine Due to Safety Concerns
Here now a new warning about the dangers of powdered caffeine. One teaspoon is as powerful as 28 couples of coffee. That health alert in just 30 seconds. When is your flu shot more than a flu shot? When it helps give a life-saving vaccine to a child in need in a developing country. Thanks to customers like you, Walgreens get a shot, give a shot program has helped provide 7 million vaccines. Make your flu shot make a world of difference. Walgreens, at the corner of happy & healthy. Now to that fda crackdown on powdered caffeine. ABC's David Kerley in silver spring, Maryland, with the with god's definition of marriage with my name is fixed to the certificate would violate my cocienns.ce it is not a light issue for me. It is a heaven or hell decision." She wants to be owe bdea cent to her lord and she wants to be owe bead cent to what she believes. How long are you willing to keep trying? Until it's done. Set to appear in court to explain themselves tomorrow morning. Lara. Alex, thank you. We turn to Amy with today's other top storiesrtta W sginhit uryo money and Wall Street. A lot ofpl peoe are nervous about the stock market again after the worst start to Se beptemr on Wall Street in 1 years. The Dow plugging 470 points Tuesday because of concern about a slowdown in manufacturing both here and in China. But some encouraging news overnight, stocks in Asia bounced back latejar, plain and simple. It needs to be done and rid of, just get rid of it. Reporter: The fda claims safe amounts of the powder, 1/16 of a teaspoon are too small to measure. It's sold online. Some in 3.5-ounce packages, the equivalent of 1250 red bulls or 3,000 cans of Coca-Cola. The fda demanding the companies respond in 15 days but 3 of the 5 are telling ABC news and other outlets they are getting out of the business. They will no longer offer pure caffeine powder supplements. There are two other companies that we've asked for a response, will they continue to sell it? They did not respond. This is a supplement so the fda can't ban it but, George and Lara, they say they'll keep the pressure on those two other companies.

This transcript has been automatically generated and may not be 100% accurate.

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