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Quercetin: Natural plant compound bolsters wellness

Quercetin belongs to a family of naturally occurring, water-soluble plant compounds known as polyphenols, flavonoids, flavonols and bio- flavonoids, and it appears to have both antiinflammatory and antioxidant properties.

In 2003, the U.S. Department of Agriculture developed a database of the quercetin content of common foods. Apples, onions and teas are the main sources of quercetin in the diet, but it is also present in red wine, berries, seeds, leafy green vegetables, hot peppers, parsley and red grapes, and is available as a dietary supplement.1,2 (See sidebar for the quercetin content of specific foods.) Studies show that people normally consume about 23 mg to 34 mg of flavonoids each ...

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