AdvertisementNavbar Search FilterMobile Microsite Search TermNavbar Search FilterMicrosite Search TermArticle NavigationArticle NavigationArticle NavigationArticle NavigationThe American Journal of Clinical Nutrition, Volume 113, Issue 5, May 2021, Pages 1275–1281,Received:Accepted:Published:Navbar Search FilterMobile Microsite Search TermNavbar Search FilterMicrosite Search TermBackgroundPrevious studies have related vitamin D supplementation to a lower risk of acute respiratory tract infection. Emerging evidence suggests that vitamin D insufficiency is related to a higher risk of...…AdvertisementNavbar Search FilterMobile Microsite Search TermNavbar Search FilterMicrosite Search TermArticle NavigationArticle NavigationArticle NavigationArticle NavigationThe American Journal of Clinical Nutrition, Volume 113, Issue 5, May 2021, Pages 1275–1281,Received:Accepted:Published:Navbar Search FilterMobile Microsite Search TermNavbar Search FilterMicrosite Search TermBackgroundPrevious studies have related vitamin D supplementation to a lower risk of acute respiratory tract infection. Emerging evidence suggests that vitamin D insufficiency is related to a higher risk of...WW…