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Quercetin
Category
Quercetin often occurs in plants as glycosides, such as rutin (quercetin rutinoside) in tea. Quercetin and rutin are used in many countries for blood vessel health and are ingredients of numerous multivitamin preparations and herbal remedies. The average U.S. adult eating a normal, healthy diet consumes about 25 to 50 milligrams of quercetin a day.
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