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Studies have found that vitamin D plays an important role in mediating immune function via a number of pathways, including enhancing the release of antimicrobial peptides in your skin.
New research now shows that low serum vitamin D levels increase the risk of nasal carriage of methicillin-resistant Staphylococcus aureus (MRSA). An estimated 2.7 million people in the U.S. are MRSA nasal carriers.