Comment on Hosseini et al. Effects of Vitamin D Supplementation on COVID-19 Related Outcomes: A Systematic Review and Meta-Analysis. Nutrients 2022, 14, 2134

Abstract

Medicines have been re-purposed as therapeutics for COVID-19 and it is with great interest that we read the publication entitled, “Effects of Vitamin D Supplementation on COVID-19 Related Outcomes: A Systematic Review and Meta-Analysis” [...]

Reply to Leong et al. Comment on “Hosseini et al. Effects of Vitamin D Supplementation on COVID-19 Related Outcomes: A Systematic Review and Meta-Analysis. Nutrients 2022, 14, 2134”

“…We thank Drs. Leong et al for their comments [ 1 ] and feedback on our article [ 2 ]. In their commentary, Leong et al make the criticism that our findings were based on data from both randomized controlled trials (RCTs) and non-randomized studies of intervention (NRIS), and our findings are in disagreement with a previous meta-analysis conducted by Stroehlein et al [ 3 ] Leong et al also states that our methodological quality assessment was not clear for one of the included RCTs [ 4 ], previously conducted in our group.…”