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Home   COVID-19 treatment studies for Vitamin C  COVID-19 treatment studies for Vitamin C  C19 studies: Vitamin C  Vitamin C   Select treatmentSelect treatmentTreatmentsTreatments
Aspirin Molnupiravir
Bamlanivimab Nigella Sativa
Bromhexine Nitazoxanide
Budesonide Povidone-Iod..
Casirivimab/i.. Probiotics
Colchicine Proxalutamide
Conv. Plasma Quercetin
Curcumin Remdesivir
Favipiravir Sotrovimab
Fluvoxamine Vitamin A
Hydroxychloro.. Vitamin C
Iota-carragee.. Vitamin D
Ivermectin Zinc
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Vitamin C study #9 of 31   All Outcomes
11/30 Pre-Exposure Prophylaxis study (treated before exposed to the virus)
Louca et al., BMJ Nutrition, Prevention & Health, doi:10.1136/bmjnph-2021-000250 (preprint 11/30/20) (Peer Reviewed)
Modest effects of dietary supplements during the COVID-19 pandemic: insights from 445 850 users of the COVID-19 Symptom Study app
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Survey analysis of dietary supplements showing no significant difference in PCR+ cases with vitamin C usage in the UK, however significant reductions were found in the US and Sweden. These results are for PCR+ cases only, they do not reflect potential benefits for reducing the severity of cases. A number of biases could affect the results, for example users of the app may not be representative of the general population, and people experiencing symptoms may be more likely to install and use the app.
Louca et al., 11/30/2020, retrospective, United Kingdom, Europe, peer-reviewed, 26 authors.
risk of COVID-19 case, no change, RR 1.00, p = 1.00, odds ratio converted to relative risk, United Kingdom, all adjustment model.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. For an individual study the most serious outcome may have a smaller number of events and lower statistical signficance, however this provides the strongest evidence for the most serious outcomes when combining the results of many trials.
All 31 studies   All Outcomes
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