Health Care Blog covering health care news, technology, new research, authored by top health experts and specialists on the business of healthcare. health insurers, technology and eHealth, physicians, pharma, wellness, the best treatment options for given conditions and more.OnionsQuercetin is one of the most powerful flavonoids (natural plant antioxidants). Studies show it helps protect against cancer. A cup of chopped onions has 61 calories, 0 fat and 3 grams of fiber. ArtichokesArtichokes contain silymarin which is an antioxidant. This antioxidant