Hello, yogurt, kefir, and tempeh. “There’s no better way to boost the body's defense system than by making sure the gut has enough good bacteria, since 70 percent of our immune system lies in the gut,” says Bonci. Some foods high in probiotics, including yogurt and kefir, also have good amounts of protein—one component of the antibodies that help improve resistance to colds, coughs, and the flu, notes Bonci.
12 Simple Hacks to Fight Off a Cold
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