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Vitamin D: A Low-Hanging Fruit in COVID-19?

The mainstream media was flooded this week with reports speculating on what role, if any, vitamin D may play in reducing the severity of COVID-19 infection.

Observational data comparing outcomes from various countries suggest inverse links between vitamin D levels and the severity of COVID-19 responses, as well as mortality, with the further suggestion of an effect of vitamin D on the immune response to infection.

But other studies question such a link, including any association between vitamin D concentration and differences in COVID-19 severity by ethnic group.

And while some researchers and clinicians believe people should get tested to see if they have adequate vitamin D levels during this pandemic — in particular frontline healthcare workers — most doctors say the best way to ensure that people have adequate levels of vitamin D during COVID-19 is to simply take supplements at currently recommended levels.


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