Quercetin is a plant polyphenol from the flavonoid group, found in many fruits, vegetables, leaves, and grains. It can be used as an ingredient in supplements, beverages, or foods.
Although quercetin is under basic and early-stage clinical research for a variety of disease conditions, there is insufficient evidence on whether quercetin promotes DNA repair in humans. Claims about the role of quercetin in liver and kidney system function, mental performance or cardiovascular health in the human body are insufficiently defined to draw any conclusions. The US FDA has issued warning letters to emphasize that quercetin is not a defined nutrient nor an antioxidant, cannot be assigned a dietary content level, and is not regulated as a drug to treat any human disease.
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Notice: This product is only suitable for laboratory use, or the use of animals. It can not be used directly on the human body