| Green, red, and purple grapes all contain important plant chemicals, like quercetin and catechins. |
| This reduction of quercetin potentially gives QC the same anticancer effects of quercetin with the hydrophilic effect of a chalcone. |
| Although many studies involving quercetin are still in the test-tube phase, onions are still a good source of vitamins and minerals. |
| One of the best is quercetin, which is found in yellow and red onions, squash, shallots, courgettes and broccoli and blue-green algae. |
| The most common flavonoid-containing supplements are Pycnogenol, grape seed extract, citrus flavonoids, quercetin, rutin, and soy isoflavones. |
| Have we mentioned antioxidants, such as quercetin, which protect brain cells from oxidative damage? |
