Analgesics
Antiandrogens
Antihistamines
Azvudine
Bromhexine
Budesonide
Colchicine
Conv. Plasma
Curcumin
Famotidine
Favipiravir
Fluvoxamine
Hydroxychlor..
Ivermectin
Lifestyle
Melatonin
Metformin
Minerals
Molnupiravir
Monoclonals
Naso/orophar..
Nigella Sativa
Nitazoxanide
PPIs
Paxlovid
Quercetin
Remdesivir
Thermotherapy
Vitamins
More

Other
Feedback
Home
 
next
study
previous
study
c19early.org COVID-19 treatment researchVitamin CVitamin C (more..)
Melatonin Meta
Metformin Meta
Antihistamines Meta
Azvudine Meta Molnupiravir Meta
Bromhexine Meta
Budesonide Meta
Colchicine Meta Nigella Sativa Meta
Conv. Plasma Meta Nitazoxanide Meta
Curcumin Meta PPIs Meta
Famotidine Meta Paxlovid Meta
Favipiravir Meta Quercetin Meta
Fluvoxamine Meta Remdesivir Meta
Hydroxychlor.. Meta Thermotherapy Meta
Ivermectin Meta

All Studies   Meta Analysis       

High-dose Vitamin C Intake and COVID-19 Related Symptoms During the SARS-CoV-2 Pandemic

Guan et al., The American Journal of the Medical Sciences, doi:10.1016/j.amjms.2024.05.005
May 2024  
  Post
  Facebook
Share
  Source   PDF   All Studies   Meta AnalysisMeta
Symp. case, high dose 31% Improvement Relative Risk Symp. case, medium dose 18% Symp. case, low dose 7% Vitamin C for COVID-19  Guan et al.  Prophylaxis Is prophylaxis with vitamin C beneficial for COVID-19? Retrospective 2,621 patients in China (December 2022 - January 2023) Fewer symptomatic cases with vitamin C (p=0.0073) c19early.org Guan et al., The American J. the Medic.., May 2024 Favorsvitamin C Favorscontrol 0 0.5 1 1.5 2+
Vitamin C for COVID-19
6th treatment shown to reduce risk in September 2020, now with p = 0.00000002 from 73 studies, recognized in 12 countries.
Lower risk for mortality, ICU, hospitalization, and recovery.
No treatment is 100% effective. Protocols combine treatments.
5,100+ studies for 112 treatments. c19early.org
Retrospective 2,746 individuals in China showing significantly lower incidence of COVID-19 symptoms and fever with higher vitamin C intake, with a dose response relationship.
This is the 71st of 73 COVID-19 controlled studies for vitamin C, which collectively show efficacy with p=0.00000002 (1 in 50 million).
21 studies are RCTs, which show efficacy with p=0.0012.
risk of symptomatic case, 31.4% lower, RR 0.69, p = 0.007, treatment 28 of 46 (60.9%), control 2,017 of 2,454 (82.2%), NNT 4.7, adjusted per study, odds ratio converted to relative risk, high dose, multivariable.
risk of symptomatic case, 18.5% lower, RR 0.82, p = 0.02, treatment 55 of 79 (69.6%), control 2,017 of 2,454 (82.2%), NNT 8.0, adjusted per study, odds ratio converted to relative risk, medium dose, multivariable.
risk of symptomatic case, 6.8% lower, RR 0.93, p = 0.13, treatment 129 of 167 (77.2%), control 2,017 of 2,454 (82.2%), NNT 20, adjusted per study, odds ratio converted to relative risk, low dose, multivariable.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Guan et al., 22 May 2024, retrospective, China, peer-reviewed, 5 authors, study period December 2022 - January 2023. Contact: huizheng@suda.edu.cn.
This PaperVitamin CAll
Abstract: Journal Pre-proof High-dose Vitamin C Intake and COVID-19 Related Symptoms During the SARS-CoV-2 Pandemic Mingcheng Guan MD , Yibo Zuo MD , Yukang Yuan MD , Hong Zhu PhD , Hui Zheng PhD PII: DOI: Reference: S0002-9629(24)01222-9 https://doi.org/10.1016/j.amjms.2024.05.005 AMJMS 2127 To appear in: The American Journal of the Medical Sciences Received date: Accepted date: 28 October 2023 14 May 2024 Please cite this article as: Mingcheng Guan MD , Yibo Zuo MD , Yukang Yuan MD , Hong Zhu PhD , Hui Zheng PhD , High-dose Vitamin C Intake and COVID-19 Related Symptoms During the SARS-CoV-2 Pandemic, The American Journal of the Medical Sciences (2024), doi: https://doi.org/10.1016/j.amjms.2024.05.005 This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2024 Published by Elsevier Inc. on behalf of Southern Society for Clinical Investigation. High-dose Vitamin C Intake and COVID-19 Related Symptoms During the SARS-CoV-2 Pandemic Mingcheng Guan MD1, Yibo Zuo MD3,4, Yukang Yuan MD3,4, Hong Zhu PhD1, Hui Zheng PhD2,3 1 Department of Medical Oncology, The First Affiliated Hospital of Soochow University, Suzhou, China 2 Department / Institute of Laboratory Medicine, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China 3 International Institute of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China 4 Jiangsu Key Laboratory of Infection and Immunity, Soochow University, Suzhou, China Corresponding author: Prof. Hui Zheng, Department / Institute of Laboratory Medicine, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, 611731 Chengdu, Sichuan, China; International Institute of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, 215123 Suzhou, Jiangsu, China.; E-mail: huizheng@suda.edu.cn; 1 Short title: Association of Vitamin C with COVID-19 Acknowledgements: We thank all members of Hui Zheng’s lab for the collection of the questionnaire. We also thank Prof. Guideng Li for the advice of the questionnaire. Financial Support: This research was funded by the National Natural Science Foundation of China (32100568, 31970846, 82171834), Jiangsu Provincial Distinguished Young Scholars (BK20130004), and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), the Suzhou Science and Technology Development Plan Project (No. SKY2023049). The funders had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication. Conflict of Interest Statement: None of the authors have any conflicts of interest to declare. Authorship: HZheng and MG principally conceived and designed the study in consultation with YZ, YY and HZhu...
{ 'indexed': {'date-parts': [[2024, 5, 24]], 'date-time': '2024-05-24T00:19:55Z', 'timestamp': 1716509995051}, 'reference-count': 13, 'publisher': 'Elsevier BV', 'license': [ { 'start': { 'date-parts': [[2024, 5, 1]], 'date-time': '2024-05-01T00:00:00Z', 'timestamp': 1714521600000}, 'content-version': 'tdm', 'delay-in-days': 0, 'URL': 'https://www.elsevier.com/tdm/userlicense/1.0/'}, { 'start': { 'date-parts': [[2024, 5, 1]], 'date-time': '2024-05-01T00:00:00Z', 'timestamp': 1714521600000}, 'content-version': 'tdm', 'delay-in-days': 0, 'URL': 'https://www.elsevier.com/legal/tdmrep-license'}], 'content-domain': { 'domain': [ 'clinicalkey.fr', 'clinicalkey.jp', 'clinicalkey.com.au', 'clinicalkey.es', 'amjmedsci.org', 'clinicalkey.com', 'elsevier.com', 'sciencedirect.com'], 'crossmark-restriction': True}, 'published-print': {'date-parts': [[2024, 5]]}, 'DOI': '10.1016/j.amjms.2024.05.005', 'type': 'journal-article', 'created': {'date-parts': [[2024, 5, 22]], 'date-time': '2024-05-22T16:08:10Z', 'timestamp': 1716394090000}, 'update-policy': 'http://dx.doi.org/10.1016/elsevier_cm_policy', 'source': 'Crossref', 'is-referenced-by-count': 0, 'title': 'High-dose Vitamin C Intake and COVID-19 Related Symptoms During the SARS-CoV-2 Pandemic', 'prefix': '10.1016', 'author': [ {'given': 'Mingcheng', 'family': 'Guan', 'sequence': 'first', 'affiliation': []}, {'given': 'Yibo', 'family': 'Zuo', 'sequence': 'additional', 'affiliation': []}, {'given': 'Yukang', 'family': 'Yuan', 'sequence': 'additional', 'affiliation': []}, {'given': 'Hong', 'family': 'Zhu', 'sequence': 'additional', 'affiliation': []}, {'given': 'Hui', 'family': 'Zheng', 'sequence': 'additional', 'affiliation': []}], 'member': '78', 'reference': [ { 'issue': '5', 'key': '10.1016/j.amjms.2024.05.005_bib0001', 'doi-asserted-by': 'crossref', 'DOI': '10.1093/jtm/taad049', 'article-title': 'Reproduction number of SARS-CoV-2 omicron variants, China, December ' '2022-January 2023', 'volume': '30', 'author': 'Bai', 'year': '2023', 'journal-title': 'J Travel Med'}, { 'issue': '5', 'key': '10.1016/j.amjms.2024.05.005_bib0002', 'doi-asserted-by': 'crossref', 'first-page': '906', 'DOI': '10.1016/j.cell.2023.01.039', 'article-title': 'Angiotensin-converting enzyme 2-at the heart of the COVID-19 pandemic', 'volume': '186', 'author': 'Oudit', 'year': '2023', 'journal-title': 'Cell'}, { 'issue': '1', 'key': '10.1016/j.amjms.2024.05.005_bib0003', 'doi-asserted-by': 'crossref', 'first-page': '216', 'DOI': '10.1186/s12916-020-01673-z', 'article-title': 'New insights into genetic susceptibility of COVID-19: an ACE2 and ' 'TMPRSS2 polymorphism analysis', 'volume': '18', 'author': 'Hou', 'year': '2020', 'journal-title': 'BMC Med'}, { 'issue': '4', 'key': '10.1016/j.amjms.2024.05.005_bib0004', 'doi-asserted-by': 'crossref', 'first-page': 'e56374', 'DOI': '10.15252/embr.202256374', 'article-title': 'Vitamin C promotes ACE2 degradation and protects against SARS-CoV-2 ' 'infection', 'volume': '24', 'author': 'Zuo', 'year': '2023', 'journal-title': 'EMBO Rep'}, { 'issue': '1', 'key': '10.1016/j.amjms.2024.05.005_bib0005', 'doi-asserted-by': 'crossref', 'first-page': '290', 'DOI': '10.1186/s12916-021-02168-1', 'article-title': 'Nutritional risk factors for SARS-CoV-2 infection: a prospective study ' 'within the NutriNet-Sante cohort', 'volume': '19', 'author': 'Deschasaux-Tanguy', 'year': '2021', 'journal-title': 'BMC Med'}, { 'issue': '6', 'key': '10.1016/j.amjms.2024.05.005_bib0006', 'doi-asserted-by': 'crossref', 'first-page': '821', 'DOI': '10.1016/S1473-3099(22)00069-X', 'article-title': 'SARS-CoV-2 incidence, transmission, and reinfection in a rural and an ' 'urban setting: results of the PHIRST-C cohort study, South Africa, ' '2020-21', 'volume': '22', 'author': 'Cohen', 'year': '2022', 'journal-title': 'Lancet Infect Dis'}, { 'issue': '10', 'key': '10.1016/j.amjms.2024.05.005_bib0007', 'doi-asserted-by': 'crossref', 'first-page': '1444', 'DOI': '10.1016/S1473-3099(22)00416-9', 'article-title': 'Efficacy and safety of a single dose of casirivimab and imdevimab for ' 'the prevention of COVID-19 over an 8-month period: a randomised, ' 'double-blind, placebo-controlled trial', 'volume': '22', 'author': 'Herman', 'year': '2022', 'journal-title': 'Lancet Infect Dis'}, { 'issue': '23', 'key': '10.1016/j.amjms.2024.05.005_bib0008', 'doi-asserted-by': 'crossref', 'first-page': '2188', 'DOI': '10.1056/NEJMoa2116620', 'article-title': 'Intramuscular AZD7442 (Tixagevimab-Cilgavimab) for Prevention of ' 'Covid-19', 'volume': '386', 'author': 'Levin', 'year': '2022', 'journal-title': 'N Engl J Med'}, { 'issue': '7', 'key': '10.1016/j.amjms.2024.05.005_bib0009', 'doi-asserted-by': 'crossref', 'first-page': '2008', 'DOI': '10.3390/nu12072008', 'article-title': 'Global Vitamin C Status and Prevalence of Deficiency: A Cause for ' 'Concern?', 'volume': '12', 'author': 'Rowe', 'year': '2020', 'journal-title': 'Nutrients'}, { 'key': '10.1016/j.amjms.2024.05.005_bib0010', 'series-title': 'Institute of Medicine: Dietary Reference Intakes for Vitamin C, Vitamin ' 'E, Selenium and Carotenoids', 'first-page': '95', 'year': '2000'}, { 'issue': '8', 'key': '10.1016/j.amjms.2024.05.005_bib0011', 'doi-asserted-by': 'crossref', 'first-page': '3704', 'DOI': '10.1073/pnas.93.8.3704', 'article-title': 'Vitamin C pharmacokinetics in healthy volunteers: evidence for a ' 'recommended dietary allowance', 'volume': '93', 'author': 'Levine', 'year': '1996', 'journal-title': 'Proc Natl Acad Sci U S A'}, { 'issue': '2', 'key': '10.1016/j.amjms.2024.05.005_bib0012', 'doi-asserted-by': 'crossref', 'first-page': '653', 'DOI': '10.1007/s10787-023-01169-1', 'article-title': 'The effects of vitamin C on respiratory, allergic and immunological ' 'diseases: an experimental and clinical-based review', 'volume': '31', 'author': 'Ghalibaf', 'year': '2023', 'journal-title': 'Inflammopharmacology'}, { 'issue': '8', 'key': '10.1016/j.amjms.2024.05.005_bib0013', 'doi-asserted-by': 'crossref', 'first-page': '1580', 'DOI': '10.3390/antiox11081580', 'article-title': 'Vitamin C Deficiency in Blood Samples of COVID-19 Patients', 'volume': '11', 'author': 'Sinnberg', 'year': '2022', 'journal-title': 'Antioxidants (Basel)'}], 'container-title': 'The American Journal of the Medical Sciences', 'original-title': [], 'language': 'en', 'link': [ { 'URL': 'https://api.elsevier.com/content/article/PII:S0002962924012229?httpAccept=text/xml', 'content-type': 'text/xml', 'content-version': 'vor', 'intended-application': 'text-mining'}, { 'URL': 'https://api.elsevier.com/content/article/PII:S0002962924012229?httpAccept=text/plain', 'content-type': 'text/plain', 'content-version': 'vor', 'intended-application': 'text-mining'}], 'deposited': { 'date-parts': [[2024, 5, 23]], 'date-time': '2024-05-23T08:11:35Z', 'timestamp': 1716451895000}, 'score': 1, 'resource': {'primary': {'URL': 'https://linkinghub.elsevier.com/retrieve/pii/S0002962924012229'}}, 'subtitle': [], 'short-title': [], 'issued': {'date-parts': [[2024, 5]]}, 'references-count': 13, 'alternative-id': ['S0002962924012229'], 'URL': 'http://dx.doi.org/10.1016/j.amjms.2024.05.005', 'relation': {}, 'ISSN': ['0002-9629'], 'subject': [], 'container-title-short': 'The American Journal of the Medical Sciences', 'published': {'date-parts': [[2024, 5]]}, 'assertion': [ {'value': 'Elsevier', 'name': 'publisher', 'label': 'This article is maintained by'}, { 'value': 'High-dose Vitamin C Intake and COVID-19 Related Symptoms During the SARS-CoV-2 ' 'Pandemic', 'name': 'articletitle', 'label': 'Article Title'}, { 'value': 'The American Journal of the Medical Sciences', 'name': 'journaltitle', 'label': 'Journal Title'}, { 'value': 'https://doi.org/10.1016/j.amjms.2024.05.005', 'name': 'articlelink', 'label': 'CrossRef DOI link to publisher maintained version'}, {'value': 'simple-article', 'name': 'content_type', 'label': 'Content Type'}, { 'value': '© 2024 Published by Elsevier Inc. on behalf of Southern Society for Clinical ' 'Investigation.', 'name': 'copyright', 'label': 'Copyright'}]}
Loading..
Please send us corrections, updates, or comments. c19early involves the extraction of 100,000+ datapoints from thousands of papers. Community updates help ensure high accuracy. Treatments and other interventions are complementary. All practical, effective, and safe means should be used based on risk/benefit analysis. No treatment or intervention is 100% available and effective for all current and future variants. We do not provide medical advice. Before taking any medication, consult a qualified physician who can provide personalized advice and details of risks and benefits based on your medical history and situation. FLCCC and WCH provide treatment protocols.
  or use drag and drop   
Submit