Quercetin is a phytonutrient (a compound found in plants to help protect it) and broken down even more, is called a flavonoid, which help with absorption and metabolism. They are in foods like quinoa, berries, tea, red wine, onions, and nuts.
Quercetin aids in tissue repair, fights off disease and infection and helps neutralize free radicals that can damage the human body. This powerful phytonutrient also helps to lower cholesterol by reducing LDL concentrations and acts as an anti-inflammatory by stabilizing the cells that release histamines in the body which produce inflammation. Scientists are also studying now the benefits of eating food containing quercetin and the possible benefits of reducing allergies.