In this preview video, Dr. Mercola interviews three experts on their insights on how increasing vitamin D levels may help against COVID-19. Watch the full interview here: Read the full article here: Subscribe for the latest health news: Visit our…

In this video, Dr. Mercola interviews three experts on their insights on how increasing vitamin D levels may help against COVID-19. • GrassrootsHealth recently conducted a review of an observational study involving 212 patients who had COVID-19, identifying a correlation…