Quercetin Is Part of a Winning Formula for Health

Sir Arthur Conan Doyle, a physician, wrote, "It has long been an axiom of mine that the little things are infinitely the most important." If he’d had his fictional detective Sherlock Holmes investigate the mysteries of nature, he’d have found quercetin – an element of many plant-based foods that is often overlooked.

Quercetin is a flavonoid, found in fruits, vegetables, and grains, with particularly high concentrations in onions, apples, red grapes, berries, and green tea. It takes its name from Quercus, meaning “oak”. So no wonder its strength. Quercetin has powerful immune-boosting properties that help the body fend off infections and reduce the risk of chronic disease. It enhances the activity of immune cells like natural killer cells and macrophages, which are a type of white blood cell that surrounds and kills microorganisms, removes dead cells, and stimulates other immune system cells. It’s fair to say that quercetin plays a role in defending the body against pathogens and cancer cells.

Like vitamins A, C, and E, quercetin is a potent antioxidant, meaning it can neutralize harmful free radicals in the body. Free radicals are unstable molecules that can damage cells, proteins, and DNA, leading to aging and a host of chronic diseases, including cancer and heart disease.