Sometimes a flu shot works, and sometimes it doesn't. To increase your odds of staying well this winter, eat more apples, blueberries, broccoli, spinach, lettuce, and onions. They all contain quercetin, a powerful antioxidant shown to reduce the risk of flu in mice.
Research has also linked high consumption of quercetin with catching fewer colds, says University of South Carolina researcher J. Mark Davis, PhD. His virus-avoiding strategy (besides steering clear of those who are sick and being vigilant about hand washing) includes loading up on quercetin-rich foods. Best of all, he says, are red onions, which have quadruple the quercetin of most other produce. Eat them raw or cooked, though cooking foods with quercetin may make the antioxidant more easily absorbed.
Research has also linked high consumption of quercetin with catching fewer colds, says University of South Carolina researcher J. Mark Davis, PhD. His virus-avoiding strategy (besides steering clear of those who are sick and being vigilant about hand washing) includes loading up on quercetin-rich foods. Best of all, he says, are red onions, which have quadruple the quercetin of most other produce. Eat them raw or cooked, though cooking foods with quercetin may make the antioxidant more easily absorbed.
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