Benefits of Quercetin
The benefits of quercetin as a bioflavonoid includes its antihistamine effect which can help treat and prevent symptoms of asthma and allergies.
The effect of quercetin to prevent blood from thickening and forming clots is the most likely reason that high intake of quercetin has been associated with lower risk of heart disease and stroke.
The benefits of quercetin are thought to be more effective for regulating blood cholesterol than vitamin E.
Quercetin helps to reduce inflammation, boosts the immune system, and speeds up the production of enzymes that cleanse the body of carcinogens.
Side Effects of Quercetin
Although there are no established side effects of quercetin, it has been shown to cause chromosomal mutations in bacterial studies. How significant this side effect of quercetin is for humans is unclear. But some doctors believe that it’s possible that birth defects could occur in the children of people using quercetin supplements around the time of conception or during pregnancy.
Foods With Quercetin
Quercetin is concentrated in rinds and skins of fruit. Rich sources of foods with quercetin are black grapes, onions, green tea, red wine, and St Johns Wort.