COVID-19 May Not Be Prevented by Vitamin D Supplementation
Higher amounts of vitamin D do not prevent COVID-19, according to recent research that used gene variants to simulate a randomized clinical trial.
The idea of an easy-to-find and low-cost, yet safe and high-quality vitamin D supplement that protects people from Coronavirus and severe illness is tempting. Be that as it may, the data on whether the vitamin does protect against COVID-19 is conflicting.
Vitamin D can help prevent respiratory infections. In theory, this means that it could potentially defend against a respiratory infection such as COVID-19.
Moreover, individuals prone to vitamin D insufficiencies, such as obese people, older adults, and people of Asian or Black ethnicity, are also vulnerable to the SARS-CoV-2 infection.
According to one study, people deficient in the vitamin were more likely to test positive for COVID-19 even one year later.
However, researchers cautioned that only randomized clinical trials might give the final proof that the vitamin can prevent a Coronavirus infection and save human lives.
To examine the impacts of vitamin D, researchers from McGill University in Montreal, Canada, and collaborators from the University of Siena in Italy used Mendelian randomization, using genetic variation across individuals to simulate a randomized controlled trial.
They discovered no links between COVID-19 infection, hospitalization, severity, and the predicted vitamin D levels based on each person’s genetic makeup.
Clinical trials of vitamin D supplementation are the only approach to answer whether vitamin D levels are linked to the risk of COVID-19 infection and mortality.
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