Quercetin
QuercetinaQuercetin-7-O-glucosideQuercetin-3-glucoside
Antioxidant
Quercetin is a type of plant compound called a flavonoid that helps protect cells from damage. It's found in many fruits, vegetables, and grains, and is also available as a supplement.
Low Concern
Source: EFSA assessment
Quercetin is generally considered safe for consumption in food amounts, but high doses may interact with certain medications.
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Modulation of Redox Balance by Phytochemicals: Implications for Cardiovascular Health.
Jaganjac M, Orie NN
2026
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Last updated: May 16, 2026