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10 flu-fighting foods

mushroom

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Mushrooms

Mushrooms used to get overlooked as a health food, but they possess two big weapons you need this flu season: selenium, which helps white blood cells produce cytokines that clear sickness, and beta glucan, an antimicrobial type of fiber, which helps activate “superhero” cells that find and destroy infections.

One of the best ways to ward off any flu is to build up your overall immunity. Dave Grotto, author of "101 Foods That Could Save Your Life," reveals 9 foods in addition to mushrooms that provide top doses of the vitamins and nutrients you need to protect and defend against illness. Click the arrows above to see more.