Can Vitamin D Help With Covid-19 Coronavirus? Here Is The Science
From the article:
"Back in 2017, the BMJ published a systematic review and meta-analysis of randomized, placebo controlled clinical trials that evaluated how Vitamin D supplementation may affect the risk of getting acute respiratory tract infections. The review returned 25 such trials. The combined results revealed that those who received Vitamin D supplementation had a 12% lower likelihood of getting an acute respiratory tract infection. Although the authors of this systematic review concluded that “Vitamin D supplementation was safe and it protected against acute respiratory tract infection overall,” a letter to the BMJ warned that people shouldn’t go overboard with these recommendations, that taking too much Vitamin D has it’s risk too."
So maybe the decrease in respiratory illness in summer months is not simply about getting away from other people, but naturally increased vitamin d levels due to increased sun exposure also play a role. Thanks for drawing my attention to this.