rct
    2010
    High Quality

    Randomized trial of vitamin D supplementation to prevent seasonal influenza A in schoolchildren

    Unknown authors

    Published in American Journal of Clinical Nutrition

    Key Findings

    Influenza A occurred in 10.8% of children given vitamin D3 1200 IU/day versus 18.6% on placebo (relative risk 0.58).

    Conclusions

    Vitamin D supplementation reduced laboratory-confirmed influenza A in schoolchildren.

    Limitations

    Single season, single country, secondary outcomes exploratory.

    Supplements Studied

    Vitamin D
    Vitamin

    Influenza A occurred in 10.8% of children in the vitamin D3 group compared with 18.6% in the placebo group.

    Outcomes Measured

    Flu Prevention

    Influenza A occurred in 18 of 167 (10.8%) children in the vitamin D3 group compared with 31 of 167 (18.6%) children in the placebo group.

    Study Details

    Year:2010
    Sample Size:334
    Duration:16 weeks
    Quality Score:7/10

    Access Study

    View on DOIView on PubMedOriginal Source

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