Rutin, also called rutoside, quercetin-3-rutinoside and sophorin, is a found in , the leaves and petioles of species, and the fruit of the tree (from ), as well as other sources. Its name comes from the name of , a plant that also contains rutin. Rutin is the glycoside between the and the .

It can combine with , supplying from the to the cells in . In humans, it attaches to the iron ion ²⁺, preventing it from binding to , which would otherwise create a highly-reactive that may damage cells. It is also an , and therefore plays a role in inhibiting some .

Rutin also strengthens the , and, therefore, can reduce the symptoms of . It also may help to prevent a common unpleasant-looking venous of the legs. Rutin, as , can reduce the cytotoxicity of oxidized and lower the risk of .

Rutin has a use in the management of in dogs and cats

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Rutin