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10 flu-fighting foods

By: Julie Knapp on Jan. 10, 2011, 7:11 a.m.
A bar of dark chocolate

Photo: Africa Studio/Shutterstock

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Dark chocolate

Nutrition experts agree that dark chocolate deserves a place in healthy diets, and a study published in the British Journal of Nutrition says it can boost your immunity, too. High doses of cocoa support T-helper cells, which increase the immune system’s ability to defend against infection. Sweet!