Quercetin is classified as a flavonol, which is a type of flavonoid, which is polyphenolic. It is found in many places in the natural world, especially in the peels and barks of plants and fruits. Some plants have high concentrations of quercetin, including onions, red wine, green tea, and St. John’s wort.
Quercetin can also help with allergies because it inhibits histamine reactions and helps soothe inflammation. In addition, many sources report that quercetin has antioxidant properties so it preserves certain types of cholesterol from harm.
Quercetin inhibits a particular enzyme that makes the body build up large amounts of sorbitol. A surfeit of sorbitol is associated with nerve, optical, and kidney conditions in diabetics.
by the Harvard School of Public Health
It has been asked by millions of people “If you eat a healthy diet, do you need to take vitamins?” Not very long ago, the common answer from most experts and professionals would have been an emphatic "no". However, today there's quite a bit of evidence that taking a daily multivitamin makes good sense for most adults.
by the Mayoclinic Staff
Given the popularity and availability of “high potency” amino acids, antioxidants, enzymes and herbs, it might seem like dietary supplements could replace food as a source of the nutrients the body requires. However, this is not the case.
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