Vitamin D reduced a patient’s risk of needing intensive care 25-fold

Monday, October 12th, 2020

In May, Matt Ridley notes, arguments on the link between Vitamin D deficiency and poor Covid outcomes started to gather speed:

That month, the Health Secretary’s attention was drawn to two studies showing a strong association between the incidence and severity of Covid-19 with vitamin D deficiencies in the patients. Vadim Backman of Northwestern University, one of the authors of one of those studies, said about healthy levels of vitamin D that “Our analysis shows that it might be as high as cutting the mortality rate in half.”

When asked to look at the evidence, Matt Hancock perfectly reasonably handed the question to Public Health England to answer. They attempted to analyse the statistical data and came up unconvinced. The problem is that a correlation is not a proof of cause and effect, and a correlation (albeit a very strong one) is all that we had at that point. Or almost all that we had.

The gold standard of medical research is the randomised controlled trial. Back in May, we had no such test for vitamin D and Covid-19. Now we do. The world’s first randomised control trial on vitamin D and Covid has just been published. The results are clear-cut. The trial, which took place in Spain at the Reina Sofía University Hospital, involved 76 patients suffering from Covid-19. Fifty of those patients were given vitamin D. The remaining 26 were not. Half of those not given Vitamin D became so sick that they needed to be put on intensive care. By comparison, only one person who was given Vitamin D requiring ICU admission.

Put another way, the use of Vitamin D reduced a patient’s risk of needing intensive care 25-fold.


  1. Albion says:

    The natural benefit of vitamin D (well-known to many people not in pharma-paid medicine) was severely limited by the initial lockdown. People denied the chance for fresh air and sunlight–what little we get at times in the UK–had a deleterious effect of the population, both in terms of physical health and mental health.

    Deny people what they need to function properly and there are consequences.

    Also, Matt Hancock is widely regarded by many as slightly better than a chocolate teapot. A good number of people suspect his masters are not the British parliament or the voting public.

  2. Harry Jones says:

    When this hoopla all began, I started doing zinc on general principle. Later, I added vitamin D. Haven’t got COVID yet.

    My social distancing and mask protocol are indifferent at best. I just got fed up with all that after a couple of months.

    How do you eat a chocolate teapot? Spout first?

  3. Sam J. says:

    Add Quercetin to the zinc. Hydroxychloroquine is a zinc ionophore (i.e. pushing extra zinc into the intracellular space). Quercetin does the same and you can get it at a heath food store. I believe having the zinc enter the cell IS the action to protect from viruses.

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