One study published in Nutrients found efficiently supplementing with vitamin D in patients with confirmed COVID-19 shortened the length of hospitalization, even in those with comorbidities
This data is part of mounting evidence that those with optimal levels of vitamin D may have a reduced risk of getting infected and, if infected, a lowered risk of severe disease and mortality
The only way to definitively identify a deficiency is through a blood test. Look for these general signs and symptoms that you need to get tested sooner rather than later. They include frequent infections, fatigue, daytime sleepiness and head sweating
Read the full analysis by Dr. Mercola
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