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Zinc. Researchers at Johns Hopkins University found that people who took zinc supplements had 40% fewer colds than those taking a placebo. Plus, the volunteers taking zinc who did end up with a cold, had a‑third fewer symptoms, and recovered as much as 3 days faster.
The reason? Because zinc prevents the cold virus from attaching to certain receptors inside our nose – which keeps them from invading our body and infecting our cells. So, get some zinc lozenges or supplements, and you’ll be much less likely to get sick.