I am frequently asked, “What are the best ways to protect myself and my loved ones from experiencing the harmful effects of COVID-19?”. In addition to the CDC guidelines, there are many supplements that are effective in strengthening the immune system. This newsletter will focus on perhaps the most important immune-supporting nutrient – Vitamin D.
HERE ARE SOME FACTS ABOUT VITAMIN D & COVID-19:
According to Dr. Luigi Gennari, MD, PhD, “The highest mortality rates of COVID-19 have been generally reported in countries with lower average levels of vitamin D. Certain demographic groups are known to be at higher risk of vitamin D deficiency, such as the elderly, nursing-home residents, and those with obesity or diabetes. These groups are also found to be at higher risk for COVID-19 hospitalization and mortality.” Gennari also noted that “Vitamin D supplementation and the correction of vitamin D deficiency might be of major relevance for the reduction of the clinical burden of the ongoing and future outbreaks of COVID-19 infection.”
In addition, a 6-week prospective observational study was published in Scientific Reports in November 2020 by Jain, et al., which analyzed the relationship between vitamin D levels and severity of COVID-19. Participants of this study were COVID-19 patients admitted to critical care centers. Results showed that the fatality rate was 21% (19 patients died in 90 patients) among vitamin D deficient and 3.1% (2 patient died in 64) among patients with normal vitamin D levels. Results also showed that the intensity of inflammatory response is also higher in vitamin D deficient COVID-19 patients. This all translates to increased morbidity and mortality in COVID-19 patients who are deficient in vitamin D.
Current scientific literature is clear that, generally speaking, it is near impossible for our bodies to manufacture ideal vitamin D levels from sunlight and diet alone. This literature indicates that vitamin D supplementation is necessary for the majority of individuals. While it is different for each individual, supplementation usually needs to be between 1,000-2,000 IU per day for children and 2,000-10,000 IU per day for adults. It is important to monitor your vitamin D levels on a regular basis to make sure you are taking the correct amount of supplementation. Although studies vary, current literature suggests that ideal blood levels of vitamin D are between 60-80 ng/mL (levels may be a bit higher for individuals with certain health challenges). To check your vitamin D levels, you will need to have a Vitamin D, 25-Hydroxy blood test done.
The bottom line is that it is very important to keep your vitamin D levels within an ideal range to prevent yourself and your loved ones from experiencing the ill effects of COVID-19 and from contracting future outbreaks.