STORY AT-A-GLANCE
- A Spanish study found giving supplemental vitamin D3 (calcifediol) to hospitalized patients with PCR-confirmed COVID-19 — in addition to standard care — reduced ICU admissions by 82% and mortality by 64%
- People who already had higher vitamin D at baseline were 60% less likely to die
- Many are now calling for official vitamin D recommendations to be issued by their governments
- Other recent research found vitamin D is a contributing factor to COVID-19 outbreaks and infection severity. Surges in daily positive tests during the fall of 2020 in 18 European countries linearly correlate with latitude, and, hence, sun exposure and vitamin D levels
- One of the reasons vitamin D is so important against COVID-19 has to do with its influence on T cell responses. Vitamin D receptor signals regulate T cell responses and therefore play an important role in your body’s defense against viral and bacterial infections
Vitamin D3 Reduces COVID Infection and Mortality
A now-retracted, preprint Spanish study1,2 found that giving supplemental vitamin D3 (calcifediol) to hospitalized patients with PCR-confirmed COVID-19 reduced ICU admissions by 82% and mortality by 64%.3 People who already had higher vitamin D at baseline were 60% less likely to die.
Another study was published in June 2021.4 In this study, researchers concluded that “vitamin D deficiency is associated with an increased risk of COVID-19 infection and mortality across a wide range of countries.”
Other studies have shown that “vitamin D deficiency to address COVID-19 warrants aggressive pursuit and study.”5 Retrospective data demonstrated that a deficiency was also associated with an increased risk of COVID1-19 infection.
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