This article (this article is a preprint and has not been peer reviewed yet) shows a systematic literature search that was performed in order to identify retrospective cohorts as well as clinical studies on COVID-19 mortality rates versus 25-hydroxy vitamin D serum levels.

A negative correlation was found between the levels of 25-hydroxy vitamin D and mortality. The theoretical point of zero risk for a linear relationship is at 50 mg/mL for 25-hydroxy vitamin D in serum.

Based on the multiple studies showing this relationship, taking vitamin D should be an essential preventive measure against mortality from COVID-19.

Any information or statement present in this post does not replace your health care provider’s advice or treatment. This blog does not provide medical advice, prescribe medications or therapies, or diagnose conditions, it only expresses an opinion. If you have a health-related question or condition, confer with your healthcare provider.