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Superfoods That Fight Colds
Zinc, an essential mineral, has a strong track record of fighting the common cold. A comprehensive review of the research, published in a Canadian medical journal in 2012, concluded that taking zinc lozenges appears to shorten the duration of cold symptoms in adults.
Zinc supplements carry a risk of side effects such as nausea and headaches, however. A better bet, says Ansel, may be to get zinc straight from your diet. Oysters contain more of the nutrient per serving than any other food—but if you're concerned about staying healthy, you might not want to eat them raw. "Uncooked shellfish could contain harmful bacteria that could make you sick in other ways," Ansel says.
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