Quercetin was found to be the second most potent sirtuin-gene activating polyphenol, second only to Resveratrol. In the polyphenol family, Quercetin is considered a flavonol, and is one of the most active antioxidants found in medicinal plants. In addition to stressed grapes and wine, foods rich in Quercetin are apples, both black and green tea, onions (particularly the outermost rings), citrus fruits, cherries, and various types of berries.

Many medicinal plants are thought to owe their biological activity to high Quercetin content. Quercetin has known anti-inflammatory effects and it also helps to prevent cancer, prostatitis, heart disease, cataracts, allergies, bronchitis, and asthma. It also enhances the absorption and prolongs the effects of Resveratrol.

The Quercetin in Vindure comes from the flower buds of the Japanese Pagoda Tree (Sophora Japonica) also known as the scholar tree. It is an extraordinarly hardy tree, and can withstand heat, cold, and drought.

References:

Quercetin found to block hepatitis C infection. Jan 6, 2010 - A team led by Dr. Samuel French at UCLA, in the department of pathology, has determined that Quercetin may be able to replace far more damaging therapies in the treatment of hepatitis, which affects over 270 million people worldwide. More...

Quercetin found to protect against DNA damage. In this study at the University of Maastricht, Quercetin supplementation in humans was found to prevent DNA damage, a possible explanation of the reported anti-cancer benefits of Quercetin. More...

Quercetin found to aid chronic prostatitis. In this 1999 study at UCLA, reported in the Journal of Urology, Quercetin was found to significantly improve symptoms of chronic prostatitis. More...

Quercetin may prevent multiple forms of cancer. Kyoto University, 2008. Conclusions of a study in the antioxidant and free-radical scavenging properties of Quercetin. More...

Quercetin prevents illness in stressed subjects. In 2007 researchers at Appalachian State University proved in a double blind DARPA funded study that Quercetin is able to reduce illness and maintain mental performance in physically stressed test subjects. More...

Quercetin increses flu resistance. A study on stressed mice at the University of South Carolina and Clemson University found that supplementation with Quercetin canceled the the reduction in flu resistance of stressed mice. More...

US Military using Quercetin to protect troops from illness. The military is experimenting with chocolate banana bars laced with Quercetin to protect troops from illness and boost energy. More...