| Question: |
| What is Quercetin? |
| Answer: |
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Quercetin belongs to a group of polyphenolic substances known as flavonoids, and is specifically found in a class of flavonoids called flavonols. It is widely distributed in the plant kingdom, but especially in rinds and barks. Particularly rich sources of quercetin include onions, red wine, green tea, and St. John's wort. See the following technical bulletin on bioflavonoids for more information on quercetin: The following U.S. products currently contain quercetin: In addition, quercetin can be obtained from a diet that includes fruit, vegetables, and berries. |