Nutritional risk factors for SARS-CoV-2 infection: a prospective study within the NutriNet-Santé cohort.

BMC Med · 2021 · PMC8629697 · PMID 34844606

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As regards vitamin D, meta-analyses have shown a potential benefit of a vitamin D supplementation for COVID-19 outcomes and mortality [ 48 ]; similarly, a meta-analysis showed a trend for a deleterious association between low serum 25(OH)D levels and COVID-19 related health outcomes [ 49 ].

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