---
title: Alpha-tocopherol does not impact gamma-tocopherol or tocotrienol concentrations
description: Alpha-tocopherol does not impact gamma-tocopherol or tocotrienol concentrations
---

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# [Alpha-tocopherol does not impact gamma-tocopherol or tocotrienol concentrations](https://info.bioticsresearch.com/researchforum/2017/08/05/alpha-tocopherol-does-not-impact-gamma-tocopherol-or-tocotrienol-concentrations)

 Written by [admin](https://info.bioticsresearch.com/researchforum/author/admin) | Aug 5, 2017 2:32:50 PM

Recent research conducted by Japanese investigators studied the impact of orally administered α-tocopherol on γ-tocopherol and tocotrienol depletion. Rats fed either a γ-tocopherol rich diet or a tocotrienol rich diet for 6 weeks were followed by a γ-tocopherol or tocotrienol free diet with or without α-tocopherol. The results showed that dietary α-tocopherol did not influence γ-tocopherol and tocotrienol concentrations in serum as well as liver, adrenal, small intestine, heart and adipose tissue. Additionally, urinary excretion of γ-tocopherol and tocotrienol metabolites were not affected.   
T. Uchida T, et al. Alpha-tocopherol does not accelerate depletion of gamma-tocopherol and tocotrienol or excretion of their metabolites in rats. Lipids. Vol. 48, No. 7, 687-695

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