Regulators and Physicians Raise Alarms About Dangerous Ingredients in Many Herbal Remedies

By ANNA WILDE MATHEWS

Mark Matcho

When Dan Gerkey was trying to get into better shape a few years ago, he tried out a dietary supplement from a local store that promised to help build his strength. At first, the stuff worked. But after several weeks the police officer, who lives in Fraser, Mich., started feeling exhausted, and his wife noticed a yellowish tinge in his eyes.

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