On the effect of vitamin C intake on human health: How to (mis)interprete the clinical evidence
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- On the effect of vitamin C intake on human health: How to (mis)interprete the clinical evidence
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For decades, the potential beneficial effect of vitamin C on human health-beyond that of preventing scurvy-has been subject of much controversy. Hundreds of articles have appeared either in support of increased vitamin C intake through diet or supplements or rejecting the hypothesis that increased intake of vitamin C or supplementation may influence morbidity and mortality. The chemistry and pharmacology of vitamin C is complex and has unfortunately rarely been taken into account when designing clinical studies testing its effect on human health. However, ignoring its chemical lability, dose-dependent absorption and elimination kinetics, distribution via active transport, or complex dose-concentration-response relationships inevitably leads to poor study designs, inadequate inclusion and exclusion criteria and misinterpretation of results. The present review outlines the differences in vitamin C pharmacokinetics compared to normal low molecular weight drugs, focusses on potential pitfalls in study design and data interpretation, and re-examines major clinical studies of vitamin C in light of these.
Originalsprog | Engelsk |
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Artikelnummer | 101532 |
Tidsskrift | Redox Biology |
Vol/bind | 34 |
Antal sider | 13 |
ISSN | 2213-2317 |
DOI | |
Status | Udgivet - 2020 |
Bibliografisk note
Copyright © 2020 The Author. Published by Elsevier B.V. All rights reserved.
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