What Is the Link Between Vitamin D and COVID-19?
By UC Davis Health February 17, 2022
A recent study has shown a correlation between vitamin D deficiency and COVID-19 severity and mortality.
The study is based on data from Israel’s first two coronavirus waves before vaccines were widely available. It found that people with a vitamin D deficiency are more likely to develop a severe or critical case of COVID-19 compared to people who had sufficient levels of the vitamin in their blood.
Patients with a vitamin D deficiency were 14 times more likely to have a severe or critical case of COVID-19. Additionally, the mortality rate for those with insufficient vitamin D levels was 25.6%, compared with 2.3% among those with adequate levels.
To learn more about the correlation between vitamin D levels and COVID-19 outcomes, we turned to UC Davis Health’s Chief of Infectious Diseases Stuart Cohen.
What is the link between vitamin D deficiency and COVID-19 infections?
Vitamin D plays a role in the body’s immune system and is known to enhance the function of immune cells. In this case, Vitamin D inhibits some of the inflammation that can make COVID-19 more severe.
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