Description: Quercetin health benefits including anti-inflammatory and antihistamine properties, and info on the side effects of supplements.
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You’ve heard the old saying, “An apple a day keeps the doctor away.” Today, researchers in the field of antioxidants and the effects of micronutrients are beginning to explain why this old adage is more scientifically true than we may have thought. Apples, as well as many other colorful fruits and vegetables, contain a rich amount of a particularly powerful antioxidant called quercetin. 1
Quercetin is a flavonol—a subtype of potent substances called flavonoids that naturally occur in plants and offer a variety of beneficial health benefits to humans (and animals). In particular, quercetin is found in rinds, young shoots, and barks of plants, and is one of the most abundant flavonoids in our diets. Onions have the highest known quercetin content (200-600 mg/kg), with fruits in a close second at between 2 and 250 mg/kg. 2
Other common foods with significant levels of quercetin include: 3