Vitamin D supplementation appears to have a protective effect against acute respiratory tract infections, especially in people who were severely deficient in this vitamin, according to results of a meta-analysis published in the British Journal of Medicine.
Researchers at Queen Mary’s University in London in the UK performed a meta-analysis with 25 studies comparing vitamin D to placebo, with 11,321 participants aged 0 to 95 years. They analyzed whether vitamin D would prevent millions of cases of flu and colds. These studies precisely identified the effect of vitamin D in preventing acute respiratory infections (colds, flu, bronchitis and pneumonia).
Vitamin D supplementation would reduce respiratory infections
The results of the study provided evidence that daily or weekly vitamin D supplementation is effective in preventing respiratory tract infections and, underpinning the benefit of supplementation for people with very low levels of vitamin D. scientists have assessed that supplementation with vitamin D reduced the risk of acute respiratory infection by 12%, and observed a significant protective effect in patients who received daily or weekly vitamin D supplementation, but at moderate doses.
“Vitamin D supplementation has been associated with a 12% reduction in acute respiratory infections,” reported Adrian Martineau, researcher Queen Mary University in London, and colleagues.
This study provides a new benefit from vitamin D supplementation, already recognized as effective for reduce migraines, for increase muscle building and for protect against bowel cancer.
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