According to new research, getting enough ambient ultraviolet B (UVB) radiation at one’s place of residence in the weeks leading up to a Wuhan coronavirus (COVID-19) infection protects against a severe case of the virus and even mortality. This study confirms vitamin D’s involvement in preventing persons from COVID-19.

Researchers from Trinity College Dublin in Ireland and the University of Edinburgh (UoE) in Scotland collaborated on the project. It was published in the Scientific Reports journal.

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Vitamin D deficiency has been linked to an increased susceptibility to viral and bacterial respiratory infections in previous research. COVID-19 insufficiency has also been linked to vitamin D deficiency in other investigations.

However, several of these studies have been dismissed or dismissed, with scientists claiming that the greater sensitivity is due to other variables such as advanced age, obesity, or chronic sickness. (Related: If COVID-19 vaccines are free for the “health of the nation,” why aren’t vitamin D and other essential supplements given out as well?)

To ensure that critics don’t confuse vitamin D’s impacts with those of other demographic, health, and lifestyle factors

Mendelian randomization is the name for this procedure. It “uses genetic variation to study the relationships between modifiable risk factors and health outcomes in observational data,” according to The BMJ.

This method allowed the researchers to thoroughly evaluate any possible causal relationship between vitamin D and COVID-19.

Nearly half a million people in the United Kingdom took part in the study. The researchers looked at the participants’ vitamin D levels as predicted by their genotypes and UVB exposure.

UVB rays are critical for the generation of vitamin D in the skin. The sun’s UVB rays strike cholesterol in skin cells, providing the energy for vitamin D synthesis.

Vitamin D appears to protect against severe and fatal COVID-19 infection, according to a study.
The Mendelian randomization analysis proved inconclusive, and the researchers believe the study’s COVID-19 instances are too few to establish a causal relationship between genetically predicted vitamin D levels and COVID-19.

However, the researchers discovered that prior to a COVID-19 infection, ambient UVB radiation at a person’s place of residence helped define a person’s risks of being hospitalized or perhaps dying from the coronavirus.

This strongly shows that exposure to sunlight, and thus vitamin D, protects people from severe COVID-19 infections and even death.

The study, according to Evropi Theodoratou, senior study researcher and professor of cancer epidemiology and global health at the University of Edinburgh, should persuade the mainstream medical community to accept studies that reveal vitamin D’s effects against COVID-19.

“Given the paucity of very effective COVID-19 medications, we believe it is critical to remain open-minded to new outcomes from well done vitamin D studies,” Theodoratou said.

Lina Zgaga, the study’s main researcher and an associate professor of epidemiology at Trinity College’s School of Medicine, believes that more research is needed. This, she believes, should be a randomized controlled trial.



Margaret Taylor

Experienced communications professional with 10 years of experience in international journalism.

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