meta_analysis
    2019
    High Quality

    Vitamin D supplementation to prevent acute respiratory infections: individual participant data meta-analysis

    Unknown authors

    Published in Health Technol Assess

    Key Findings

    Daily or weekly vitamin D reduced acute respiratory infection risk, with the largest benefit in those with baseline 25(OH)D below 25 nmol/L.

    Conclusions

    Benefit is concentrated in the deficient.

    Supplements Studied

    Vitamin D
    Vitamin

    Vitamin D supplementation reduced acute respiratory infection risk, with greatest benefit at baseline 25(OH)D below 25 nmol/L.

    Outcomes Measured

    Flu Prevention
    Primary

    Individual participant data meta-analysis of randomised, double-blind, placebo-controlled trials of vitamin D supplementation to prevent acute respiratory infections.

    Related Health Concerns

    Vitamin D Deficiency

    Study Details

    Year:2019
    Quality Score:8/10

    Access Study

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    This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.