Vitamin D sufficiency may reduce complications of COVID-19

Vitamin D sufficiency may reduce complications of COVID-19

Written by Timothy Huzar on September 30, 2020 — Fact checked by Catherine Carver, MPH

A recent small-scale study has concluded that hospitalized patients with COVID-19 are less likely to have life threatening complications if they have sufficient vitamin D levels.

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A new study demonstrates that people with sufficient levels of vitamin D are less likely to develop life threatening COVID-19 complications when hospitalized with the disease.

The research, published in the journal PLOS ONE, could be valuable for doctors attempting to reduce the mortality rates of COVID-19 in the absence of an effective vaccine.

If further studies back up these findings, vitamin D supplements might offer a cost-effective way to limit the risk of severe COVID-19. It is important to note that this recent study has several limitations, which we address below.

Stay informed with live updates on the current COVID-19 outbreak and visit our coronavirus hub for more advice on prevention and treatment.


Since the sudden emergence of the virus SARS-CoV-2 and the disease that it causes, COVID-19, scientists have paid a great deal of attention to the development of a vaccine.

Experts consider a vaccine to be crucial in reducing the effects of the virus, even if it is not yet clear to what extent an initial vaccine would moderate rates of transmission and infection.

Alongside the endeavor to develop a vaccine, researchers are also focusing on developing effective COVID-19 treatments. Even if none can make a person immune to the virus, treatments may be able to reduce the disease’s severity.

The Food and Drug Administration (FDA) have approved two drugs as treatments for COVID-19: remdesivir and dexamethasone.

Another candidate is vitamin D. Research has suggested that it might, in theory, be effective, but corroborating this requires further efforts.


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