Letter to the editor: “Clinical significance of micronutrient supplements in patients with coronavirus 2019 disease: A comprehensive systematic review and meta-analysis"

We would like to share ideas on publication “Clinical significance of micronutrient supplements in patients with coronavirus 2019 disease: A comprehensive systematic review and meta-analysis [1]”. Beran et al. identified 26 studies involving 5633 COVID-19 patients, comparing outcomes from the use of three individual micronutrient supplements with standard-of-care (SOC) practices. Although the authors discussed about zinc deficiency and the risk of complications and mortality, they concluded that supplementation with this micronutrient was not statistically associated with the primary outcome of reduced mortality from COVID-19.