The Historical Impact and Importance of Zinc in Immunity

It's possible — but it depends on a few key factors. NPR health correspondent Allison Aubrey explains, and tells the story of the scientist who uncovered the importance of zinc for human health in the first place.

Follow Allison on Twitter @AubreyNPRFood and host Maddie Sofia @maddie_sofia. Email the show at shortwave@npr.org.

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