Quercetin is a flavonoid antioxidant found in many fruits and vegetables. It serves a variety of important health effects and has been used successfully for its cholesterol-lowering, anti-cancer and anti-inflammatory benefits. Aside from dietary sources, you can obtain quercetin in supplement form and it can often be found in formulas together with other anti-inflammatory compounds, such as bromelain, grape seed and green tea. Consult your physician before taking any supplement.
Quercetin prevented progression of chronic obstructive pulmonary diseases, COPD, in a study conducted at the Department of Pediatrics and Communicable Diseases, University of Michigan. In the study, researchers gave laboratory animals 0.5 milligrams per day for 10 days and noted improved lung elasticity, decreased oxidation and decreased inflammation. Quercitin also decreased levels of tissue-damaging enzymes known as matrix metalloproteinases. The study was published in the September 2010 issue of the journal "Respiratory Research." For more info click on my website.