dietary supplements dietary supplements
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dietary supplements

Even versions of Zi Xiu Tang Bee Pollen labeled "genuine" and "anti-counterfeit" have been found to contain the drug sibutramine, which was supposed to come off the U.S. market in 2010 for safety reasons. Food and Drug Administration hide caption

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Food and Drug Administration

Banned Drugs Still Turning Up In Weight-Loss Supplements

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Dietary supplements are generally defined as vitamins, minerals, herbs and extracts. They're regulated as a unique category of food by the Food and Drug Administration. iStockphoto.com hide caption

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With osteoarthritis, knees become swollen and stiff, and cartilage can degenerate. Ted Kinsman/Science Source hide caption

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Ted Kinsman/Science Source

If only it was as simple as popping a supplement and being set for life. But alas, no. iStockphoto.com hide caption

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iStockphoto.com

Ads often tout dietary supplements and vitamins as "natural" remedies. But studies show megadoses of some vitamins can actually boost the risk of heart disease and cancer, warns Dr. Paul Offit. iStockphoto.com hide caption

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iStockphoto.com

Some sports supplements contain the ingredient DMAA. The FDA has warned that DMAA may not be safe. iStockphoto.com hide caption

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iStockphoto.com

Popular Workout Booster Draws Safety Scrutiny

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Despite public health campaigns urging women in the U.S. to take folic acid, many are still not taking the supplements when they become pregnant. iStockphoto.com hide caption

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iStockphoto.com

There might be much more caffeine than you think in those supplements you're taking. There also might be much less. Janine Lamontagne/iStockphoto hide caption

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Janine Lamontagne/iStockphoto

Federal health officials recommend 1,000 milligrams of calcium per day for people younger than 50, but some are overdoing it. iStockphoto.com hide caption

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Too Much Calcium Could Cause Kidney, Heart Problems, Researchers Say

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