demonstrated suggested inconclusive safety concern ongoing study display ongoing demontrated benefit only
COVID 19 hospitalized
COVID-19 severe or critically
Vitamins
vitamin C Zhang

10 studies excluded by filtering options 0

5671 Aisa-Alvarez, 2020 210excludedrisk of bias not avaialble
6104 Rastogi, 2020 110risk of bias not avaialble
6119 COVID-VIT-D, 2022 113high risk of bias
6123 Annweiler (GERIA-COVID; regular intake of bolus vitamin D), 2020 1130not a RCTrisk of bias not avaialble
6149 Annweiler (GERIA-COVID; Vitamin D Supplementation After COVID-19 Diagnosis), 2020 1130not a RCTrisk of bias not avaialble
6381 Espitia-Hernandez, 2020 1310not a RCTrisk of bias not avaialble
6381 Espitia-Hernandez, 2020 1310not a RCTrisk of bias not avaialble
6462 Jamali Moghadam Siahkali, 2021 113high risk of bias
6566 Kumari, 2020 100risk of bias not avaialble
7995 Hazan, 2021 2320excludednot a RCTrisk of bias not avaialble