Intake of 25-Hydroxyvitamin D<sub>3</sub> May Reduce the Severity of Upper Respiratory Tract Infection: Post hoc Analysis of a Randomized, Double-Blind, Placebo-Controlled, Parallel Group Comparison Study.

Nutrients · 2020 · PMC7764240 · PMID 33302570

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marginally significantno p-value reported

Due to the exploratory nature of this study and the small number of subjects analyzed, 10% on both sides was considered marginally significant, in order not to overlook the efficacy of 25OHD.

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