Quercetin has been called the “king of flavonoids” because of its powerful antioxidant properties and its ability to support a healthy inflammatory response in the body.
It is found in many foods that are recognized for their health benefits, such as red onions, apples, olive oil, dark berries and grapes, capers, salad greens, and culinary herbs such as dill, cilantro, watercress, and radicchio. (Quercetin contributes to the richly colored pigments in these foods.) A potent antioxidant, quercetin also works to balance a healthy inflammation response and helps regulate histamine.
Histamine is the compound responsible for some of the unpleasant symptoms associated with occasional and seasonal upper respiratory challenges. Quercetin also supports kidney function by decreasing the AGE (advanced glycosylation end product) molecules from creating scarring in the kidney tissues