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Covid-19: We need to understand the risks to tackle them

BMJ 2020; 371 doi: (Published 01 October 2020) Cite this as: BMJ 2020;371:m3790

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Covid-19 - "much to gain, by taking vitamin D supplements..."

Dear Editor

Peter Cobbold says: "D3 has been fighting viruses and other microbes for 500 million years, medicine is not going to better it. SARS-CoV-2 has exploited our near global D3-deficiency. First correct that cause and the risks evaporate."[1]

A recent report in the Irish Times says "People have “nothing to lose”, and much to gain, by taking vitamin D supplements as protection during the Covid-19 pandemic, according to a new paper by Irish and UK scientists".[2]

According to the report, Professor Rose Anne Kenny says new US research indicates that virus patients are four times less likely to require admission to ICU if they have normal levels of vitamin D.  But in addition, for the first time the research suggests people with good levels of the vitamin may be less likely to become infected, according to Prof Kenny.

Professor Kenny says vitamin D supplementation "should be mandated for prescription for vulnerable adults and children, such as those in care, prisons, or other institutions where people are likely to be inside for much of the time during the summer".  

I don't care much for medical mandates, but surely more should be done to promote the simple intervention of vitamin D supplementation, as suggested by Professor Cobbold and Professor Kenny?

1. Peter H Cobbold BMJ rapid response - Covid-19: We need to understand the cause to tackle the risks. 2 October 2020:
2. Vitamin D deficit link to Covid-19 severity 'considerable'. The Irish Times, 5 October 2020:

Competing interests: No competing interests

05 October 2020
Elizabeth M Hart
Independent person investigating the over-use of vaccine products and conflicts of interest in vaccination policy
Adelaide, Australia