Vitamin D3 and COVID-19 Outcomes: An Umbrella Review of Systematic Reviews and Meta-Analyses.
Fausto PetrelliSimone OldaniKaren BorgonovoMary CabidduGiuseppina DogniniMara GhilardiMaria Chiara ParatiDaniela Petro'Lorenzo DottoriniCarmen ReaVeronica LonatiAndrea LucianiAntonio GhidiniPublished in: Antioxidants (Basel, Switzerland) (2023)
This umbrella review of the available evidence suggests that insufficient vitamin D3 may increase COVID-19 infection risk, severity, and mortality, in addition to showing a highly suggestive association between vitamin D3 supplementation and reduced severity and mortality among infected patients.