Saskatoon, Saskatchewan (CTV network) — As people begin to absorb more of the spring sun, the rays may provide more than just a pardon from the cabin fever.
According to a new study, COVID-19 patients with high vitamin D levels, especially black patients, may be at low risk of becoming infected with COVID-19.
Researchers at the University of Chicago School of Medicine published their findings in the medical journal JAMA Open Network, surveying 3,000 patients who tested for vitamin D levels two weeks before the COVID-19 test.
“These new results show that having vitamin D levels above levels normally considered sufficient is associated with a reduced risk of COVID-19-positive testing, at least in black individuals. “Masu,” said Dr. David Meltzer, the lead author of the study, in a press release. ..
Vitamin D can be produced by the body when the skin is exposed to sunlight, but it can also be obtained from diet and supplements. Melzer explained that people with darker skin generally have lower levels of vitamin D.
Doctors mainly recommend 30 ng / ml vitamin D levels to be sufficient for people to be healthy. However, the study found that black patients with levels of 30-40 ng / ml were 2.6 times more at risk of testing for COVID-19 positive than patients with levels of 40 ng / ml.
“This supports discussions to design clinical trials that can test whether vitamin D is a viable intervention to reduce the risk of illness, especially in people of color,” said UChicago Medicine in hospital medicine. Meltzer, who is also responsible, added.
Currently, his team is testing how effective vitamin D supplements are in the prevention of COVID-19 in general.
Researchers have been investigating the relationship between possible infections and vitamin D levels for several months. This study follows a previous study that found that vitamin D deficiency (<20 ng / ml) could actually increase the risk of being positive. For COVID-19.
The relationship between vitamin D and COVID-19 has proven to be a hot target for scientists.
Another study found that more than 80% of people diagnosed with COVID-19 had vitamin D deficiency. And in another study, virtually presented at the Endocrine Society’s annual meeting this weekend, hospitalized COVID-19 patients with low vitamin D levels died or were ventilated when given compound supplements. It turns out that it is unlikely to be needed.
Metzer said much research has been done on the effects of vitamin D on bone health, but there is some evidence that vitamin D may improve immune function and reduce inflammation. His latest research shows that past studies may not be using enough vitamin D to truly investigate the effects on the immune system, he said.
However, Melzer warns that this is an observational study, meaning that it did not identify a direct cause or effect between vitamin D and COVID-19 infection.
“We find that there is an association between vitamin D levels and the likelihood of COVID-19 diagnosis, but why, or whether these results are directly due to vitamin D, other related organisms. I don’t know exactly if it’s due to scientific factors. “
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