High-dose vitamin D 3 supplementation shows no beneficial effects on white blood cell counts, acute phase reactants, or frequency of respiratory infections.
Gustav Wall-GremstrupRune HoltSam Kafai YahyaviMads Joon JorsalAnders JuulNiels JørgensenMartin Blomberg JensenPublished in: Respiratory research (2024)
NCT01304927 (ClinicalTrials.gov). Registered February 20, 2011.