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Types of Vitamin E: Forms & Bioavailability

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

Forms Comparison

FormBioavailabilityBest For
d-Alpha-Tocopherol (Natural)HighGeneral supplementation — natural form with 2x the bioactivity of synthetic
dl-Alpha-Tocopherol (Synthetic)ModerateBudget option — synthetic form with roughly half the bioactivity of natural
Mixed TocopherolsHighComprehensive antioxidant protection — includes alpha, beta, gamma, and delta tocopherols
TocotrienolsModerateCardiovascular and neuroprotective research — emerging evidence for unique benefits beyond tocopherols

d-Alpha-Tocopherol (Natural)

Bioavailability: High. Best for: General supplementation — natural form with 2x the bioactivity of synthetic.

dl-Alpha-Tocopherol (Synthetic)

Bioavailability: Moderate. Best for: Budget option — synthetic form with roughly half the bioactivity of natural.

Mixed Tocopherols

Bioavailability: High. Best for: Comprehensive antioxidant protection — includes alpha, beta, gamma, and delta tocopherols.

Tocotrienols

Bioavailability: Moderate. Best for: Cardiovascular and neuroprotective research — emerging evidence for unique benefits beyond tocopherols.

Full Vitamin E Guide

References

  1. (). Meta-analysis: high-dosage vitamin E supplementation may increase all-cause mortality. Annals of Internal Medicine. DOI
  2. (). Vitamin E and the risk of prostate cancer: the Selenium and Vitamin E Cancer Prevention Trial (SELECT). JAMA. DOI
  3. (). Vitamin E supplementation and in vivo immune response in healthy elderly subjects: a randomized controlled trial. JAMA. DOI
  4. (). Effect of vitamin E and memantine on functional decline in Alzheimer disease: the TEAM-AD VA cooperative randomized trial. JAMA. DOI