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  1. This meta-analysis produced a corroboration that vitamin D supplement has a preventive effect on influenza, and vitamin D supplementation in winter seems to have better effect of preventing influenza than in all seasons according to subgroup analysis (winter vs. all seasons).

  2. 2 kwi 2020 · This article reviews the roles of vitamin D in reducing the risk of respiratory tract infections, knowledge about the epidemiology of influenza and COVID-19, and how vitamin D supplementation might be a useful measure to reduce risk.

  3. 15 lut 2017 · A new global collaborative study has confirmed that vitamin D supplementation can help protect against acute respiratory infections. The study, a participant data meta-analysis of 25 randomized controlled trials including more than 11,000 participants, has been published online in The BMJ.

  4. 15 lut 2017 · A recent Cochrane review of randomised controlled trials reporting that vitamin D supplementation reduces the risk of severe asthma exacerbations, which are commonly precipitated by viral upper respiratory tract infections, adds further weight to the case for biological plausibility.40 Although the results are consistent with the hypothesis ...

  5. 16 sie 2018 · The questions: “What dose of vitamin D ensures more resistance to influenza infections?” and “Does vitamin D-deficiency mean more susceptibility to influenza infections?” remain open and require more clinical trials.

  6. 7 sty 2022 · Background: Vitamin D supplementation improves the immune function of human body and can be a convenient way to prevent influenza. However, evidence on the protective effect of vitamin D supplementation on influenza from Randomized Controlled Trials (RCTs) is inconclusive.

  7. Only randomized placebo controlled clinical trials exploring the effect of vitamin D supplementation on prevention of respiratory tract infections like influenza, pneumonia, common cold, etc., were included in the analysis.

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