Study: Vitamin D Reduces The Risk Of Getting The Flu By Up To 50%


According to doctors in Japan, the risk of children suffering from flu can be reduced by 50% if they take vitamin D [1]. Read on to find out more!




This finding has potential implications for flu epidemics since vitamin D, — which is naturally produced by the human body when exposed to direct sunlight — has no significant side effects, costs little, and can be several times more effective than anti-viral drugs or vaccines according to research in the American Journal of Clinical Nutrition [2].

Only one in ten children, aged six to 15 years, taking the sunshine vitamin in a clinical trial came down with flu compared with one in five given a dummy tablet. Mitsuyoshi Urashima, the Japanese doctor who led the trial, said vitamin D was even more effective than vaccines in preventing the flu!




Vitamin D was found to be even more effective when the comparison left out children who were already given extra vitamin D by their parents, outside the trial. Taking the sunshine vitamin was then shown to reduce the risk of flu to a third of what it would otherwise be.

Using Vitamin D is not unheard of medically, either. Dr. John Cannell, MD, suggests high-dose vitamin D (50,000 IU) be consumed for three days at the first sign of a cold or the flu [3]. Vitamin D acts as a natural antibiotic, and works against every type of microbe (viruses, bacteria, fungi and parasites) [4].

Vitamin D deficiency is common during the winter months, especially in countries far north of the equator [5], which is a bummer, as Vitamin D also stimulates the production of potent anti-microbial peptides in other white blood cells and in epithelial cells lining the respiratory tract, protecting the lungs from infection [6].

The Japanese finding supports a theory that low blood levels of the sunshine vitamin occurring in winter explain why flu epidemics generally peak between December and March.

Dr. John Oxford, professor of virology at Queen Mary School of Medicine, London, said: “This is a timely study. It will be noticed by scientists. It fits in with the seasonal pattern of flu. There is an increasing background of solid science that makes the vitamin D story credible.”[7]




Researchers have also recently pinpointed the mechanism behind vitamin D3’s ability to enhance the immune system and why it is so critical to our health [2, 8]. Among other things, vitamin D is not a vitamin, but a steroid hormone precursor, which has profound effects on innate immunity; the amount of vitamin D in most food and nearly all multivitamins is literally inconsequential.

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Study: Vitamin D Reduces The Risk Of Getting The Flu By Up To 50% Study: Vitamin D Reduces The Risk Of Getting The Flu By Up To 50% Reviewed by matt on 21:10:00 Rating: 5
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