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Recent researchTrusted Source discovered a correlation between vitamin D deficiency and a higher risk of COVID-19. Now, another new study has found the same — noting that more than 80 percent of people with COVID-19 didn’t have adequate levels of the “sunshine vitamin” in their blood.

As part of the new study in the Journal of Clinical Endocrinology & Metabolism, researchers looked at 216 COVID-19 patients in a hospital in Spain. The scientists matched the patients to controls from another dataset.

Of all the patients, 82.2 percent were deficient in vitamin D.

In the research, men had lower vitamin D levels compared to women.

People who had COVID-19 and lower vitamin D levels also had higher inflammatory markers such as ferritin and D-dimer. Those have been linkedTrusted Source to poor COVID-19 outcomes.

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