New study suggests vitamin D deficiency associated with COVID-19 severity

Image: iStock / juankphoto by AFP Relaxnews

A new study found a possible link between severe vitamin D deficiency and an increased risk of death from COVID-19.

The study, led by researchers at Northwestern University of Illinois, USA, focused on hospitalization, recovery, and mortality of COVID-19 patients in hospitals and clinics in countries with a large number of confirmed cases, including China, France, and Germany. Examine data, Italy, Iran, South Korea, Spain, Switzerland, United Kingdom, United States

The researchers did not have data on vitamin D levels in patients, so they considered the established link between vitamin D and the levels of C-reactive protein (CRP) that increased with inflammation in the body. Between CRP and severe COVID-19 to estimate how Vitamin D may affect the severity of COVID-19.

They found that patients in countries with high COVID-19 mortality, such as Italy, Spain, and the United Kingdom, had lower levels of vitamin D compared to patients in less severely affected countries. ..

More specifically, the researchers found that the risk of severe COVID-19 cases in patients with severe vitamin deficiency was 17.3% and only 14.6% in patients with normal vitamin D levels. ..

Vitamin D prevents dangerous overactivity of our immune system, and healthy levels of vitamin D may prevent the development of serious complications, including death from COVID-19, researchers say. explained.

“Our analysis shows that it may be as high as reducing mortality in half,” said Principal Investigator Vadim Bachmann. “We can’t prevent patients from getting the virus, but it can reduce complications and prevent death of infected people.”

But researchers emphasize that this does not mean that we all need to start taking vitamin D supplements.

“I think it’s important for people to know that vitamin D deficiency can affect mortality, but it’s not necessary to force vitamin D on everyone,” Backman said. .. “This needs further research. I hope our work will stimulate interest in this area. The data may also reveal a mechanism of death, and if proven, It could lead to new therapeutic targets. “

Bachman added that overdose of vitamin D can cause negative side effects and further research is needed to understand how vitamins are protected from COVID-19. ..

“It’s hard to say which dose is most beneficial to COVID-19,” Bachman said. “But it’s clear that vitamin D deficiency is harmful, and it’s easy to deal with the right supplements. This can help vulnerable populations, such as African Americans and the elderly, who are endemic to vitamin D deficiency. It may be another key to protection. “

This study is shared with medRxiv, a medical science preprint server, but has not been peer reviewed and has not been validated by other experts. RGA

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