Tier B

Vitamin E · Tocopherols (α-Tocopherol family)

Also known as: Alpha-tocopherol · d-α-tocopherol · Mixed tocopherols · Vitamin E

1 PMID anchor · CELL · VISION · CARDIO · Last reviewed 2026-06-04

Mechanism of action

  • Lipid-soluble chain-breaking antioxidant in cell membranes
  • Quenches peroxyl radicals in lipoprotein membranes
  • Modulates NF-κB and PKC signalling in macrophages

Molecular + tissue targets

  • Cell membrane lipid layer
  • Oxidative stress markers
  • Macular antioxidant network

Dosage range

15 mg α-tocopherol equivalents per day RDA (adults); AREDS2-style trials use 400 IU (≈ 268 mg) within the multi-ingredient formula; Cochrane SR (Evans 2017 PMID 28756618) of 19 trials reported antioxidant vitamins associated with reduced progression to late AMD (OR 0.72, 95% CI 0.58-0.90, moderate-certainty)

Safety notes

High-dose α-tocopherol (≥ 400 IU/day) has been associated with all-cause mortality signal in some meta-analyses (Miller 2005) — long-term supraphysiologic dosing is not recommended without clinician oversight; vitamin K antagonist (warfarin) interaction at high doses

Cross-market regulatory status

🇺🇸 FDA

GRAS · DSHEA dietary supplement · structure/function claims permitted

🇪🇺 EFSA

Authorized health claim Reg 432/2012 oxidative-stress protection (vitamin E source threshold required); NRV 12 mg

🇧🇷 ANVISA

RDC 243/2018 dietary supplement · IN 28/2018 Anexo V alegação funcional verbatim: "A vitamina E auxilia na proteção dos danos causados pelos radicais livres."

Authorized claims · verbatim (2)

Direct quotes from each jurisdiction's framework · never paraphrased · with framework reference and conditions of use.

🇪🇺 EFSA · 1 claim

Reg 432/2012

Vitamin E contributes to the protection of cells from oxidative stress.

Conditions: Reg 1924/2006 art 10(2) + Annex: claim may only be used for food which is at least a "source of vitamin E" as referred to in the Annex to Reg 1924/2006

Authorized 2012

🇧🇷 ANVISA · 1 claim

IN 28/2018 Anexo V alegação funcional

A vitamina E é um antioxidante que auxilia na proteção dos danos causados pelos radicais livres.

Conditions: IN 28/2018 Anexo V: alegação restrita a suplementos cujo aporte diário do nutriente atenda à quantidade mínima do Anexo II (15 mg de equivalentes de α-tocoferol para adultos)

Authorized 2018

Common use cases

  • cellular oxidative stress protection
  • age-related macular degeneration progression support (alongside AREDS2 cluster)
  • general antioxidant adequacy
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