0
0.5
1
1.5
2+
Progression
72%
Improvement
Relative Risk
Time to viral-
-8%
Vitamin C for COVID-19 Zhao et al. EARLY TREATMENT
Is early treatment with vitamin C beneficial for COVID-19?
PSM retrospective 110 patients in China
Lower progression with vitamin C (p=0.03)
c19early.org
Zhao et al., Frontiers in Pharmacology, Apr 2021
Favors vitamin C
Favors control