Quercetin

Quercetin is an important dietary polyphenol, which are a family of micronutrients that includes a group of natural plant chemicals, called flavonoids, a large class of plant compounds found in deeply coloured fruit and vegetables. Dietary sources of quercetin include onions (especially red onions), cherry tomatoes, broccoli, apples, parsley, sage, tea, red wine, olive oil, grapes, cherries and other berries such as blueberries and blackberries.

In recent times there’s been a significant increase in the use of natural bioactive substances such as Quercetin, as dietary antioxidant supplements, due to low toxicity and being environmentally friendly.