Quercetin is chemically related to a class of flavonoids called anthocyanins. Early research on quercetin suggested that ingesting higher amounts may induce cancer, after it failed a standard - but somewhat controversial laboratory test called the Ames Test. This test supposedly identifies chemicals that might be carcinogenic. Subsequent studies however disputed those earlier findings and attributed cancer-protective or cancer-fighting properties to quercetin instead. In addition, quercetin has been found to be an effective hyperthermia sensitizer, making it a potential adjunct therapeutic agent in the treatment of various cancers that are sensitive to heat stress... Full Text