Cited by 239Antioxidant Activity and Oxidative StressNutrition and Health StudiesCarcinogens and Genotoxicity Assessment

Tolerance and safety of vitamin E: A toxicological position report

Kappus, H·1992·Free Radical Biology and Medicine

Abstract

From numerous publications on the "prophylactic" and "therapeutic" use of vitamin E, it may be concluded that the toxicity of vitamin E is very low. It has been demonstrated in animal experiments that vitamin E has neither mutagenic, teratogenic nor carcinogenic properties. Based on studies in humans, a daily dosage of 100-300 mg vitamin E can be considered harmless from a toxicological point of view. Using double-blind studies involving a large number of subjects, it has been demonstrated that large oral doses of up to 3,200 USP-Units/day led to no consistent adverse effects. From a large body of published data, dosage ranges have been deduced which can be characterized as safe for human subjects even where their use extends over a long period of time. It should, however, be noted that oral intake of high levels of vitamin E can exacerbate the blood coagulation defect of vitamin K deficiency caused by malabsorption or anticoagulant therapy. High levels of vitamin E intake are, therefore, contraindicated in these subjects.

Integrity signals

Registry

Crossref · 10.1016/0891-5849(92)90166-e

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85 of 85 references verified0 citation errors · 0 not checkable

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Authors
Kappus, H.
Affiliations
Freie Universität Berlin (DE)
Corresponding author
Kappus, H
Venue
Free Radical Biology and Medicine
Publisher
Elsevier BV
Published
1992-07
Volume
13
Issue
1
Pages
55-74
ISSN
0891-5849 (ISSN-L)
OpenAlex
W1983748680
Cited by
239
References
86
Citations by year
2026: 1 · 2025: 9 · 2024: 5 · 2023: 3 · 2022: 3 · 2021: 6 · 2020: 5 · 2019: 7 · 2018: 2 · 2017: 4 · 2016: 6 · 2015: 8 · 2014: 4 · 2013: 3 · 2012: 8
FWCI
5.66
Type
journal article
Language
en
Open access
closed
Locations
  • Free Radical Biology and Medicine (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutrition and Health Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Carcinogens and Genotoxicity Assessment
Keywords
vitamin E, alpha-tocopherol, toxicity, safety, mutagenicity, teratogenicity, carcinogenicity, high-dose vitamin E, coagulation, vitamin K deficiency, malabsorption, anticoagulation, tolerable daily intake
MeSH terms
Animals, Drug Tolerance, Free Radicals, Humans, Safety, Vitamin E

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