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Researchers at Cornell University in Geneva, N.Y. have found that Quercetin can protect against the type of DNA damage that leads to Alzheimer’s disease. You’d be well within your rights to ask, “What, pray tell, is Quercetin?” Not exactly a household name, is it?
But it is a powerful antioxidant that’s found in many fruits and vegetables (including apples and onions).
In the study at Cornell, isolated brain cells from rats were treated with quercetin or vitamin C, and then were exposed to a chemical to stimulate the type of damage that’s associated with Alzheimer’s. Cells treated with quercetin had significantly less damage than those with no antioxidant treatment or those treated with vitamin C.
As a dietary supplement, the usual dosage of quercetin is 200 to 400 mg two or three times daily.