Other beneficial compounds are proanthocyanidins, found in berries; quercetin, found in onions; curcumin, from turmeric; catechins, from green tea; persimmon; kaempferol, found in cruciferous vegetables; oligonol, from lychee fruit; butein, found in the Chinese lacquer tree and many flowering plants; and many compounds, like paeonol, used in traditional Chinese medicine.
