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COVID Infection And Death May Be Protected By Vitamin D: Research

When the two variables were evaluated, the researchers discovered that the connection with measured vitamin D concentration in the circulation was three times stronger for UVB-predicted vitamin D level than for genetically-predicted vitamin D level.

Vitamin D supplementation before infection with COVID-19 may help prevent serious illness and even death, according to a recent study.

For the first time, researchers from Trinity College in Ireland, University of Edinburgh in Scotland and Zhejiang University in China examined both genetically predicted and vitamin D levels as predicted by ultraviolet B (UVB) radiation. UVB radiation is critical for vitamin D generation in the skin.

A researcher on the study from Zhejiang, Dr Xue Li, said, "Our study supports the recommendation of vitamin D supplementation for not only the maintenance of bone and muscle health during the lockdown, but also the potential benefits in relation to protection from COVID-19." 

When the two variables were evaluated, the researchers discovered that the connection with measured vitamin D concentration in the circulation was three times stronger for UVB-predicted vitamin D level than for genetically-predicted vitamin D level. According to the study, which was published in the journal Scientific Reports, vitamin D may prevent against severe COVID-19 disease and death.

Professor Lina Zgaga, Associate Professor in epidemiology, at Trinity's School of Medicine added, "Conducting a properly designed COVID-19 randomised controlled trial of vitamin D supplementation is critical. Until then, given that vitamin D supplements are safe and cheap, it is definitely advisable to take supplements and protect against vitamin D deficiency."

Vitamin D deficiency has been related to an increased risk of viral and bacterial respiratory infections, according to previous research. In the same way, COVID-19 were found to be highly correlated with vitamin D deficiency in various other observational studies.


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vitamin d COVID infection UVB UVB radiation

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