Peptide Atlas · Vitamin

DL-alpha-Tocopherol (free Vitamin E)

Using deuterium-labelled forms, natural (RRR) vitamin E reached about twice the plasma and tissue availability of synthetic (all-rac) vitamin E in humans.

established

provisional
PubChem 2116
2 citations
0 discussions
0 followers
Vitamin E
all-rac-alpha-tocopherol
alpha-Tocopherol

Follow this molecule Ask the Hunter-Gatherer

What the evidence says

six tiers, never blended

established — replicated in humans, or settled by a regulator

every claim resolves to its source

All 2 citations resolve to their original source. · 0 posts naming it, 0 members counted once each.

Evidence, kept apart

The Atlas never mixes evidence types into one blob. Each claim below carries the tier it actually sits in; an unresolved citation is shown and does not move the page.

Evidence map for DL-alpha-Tocopherol (free Vitamin E). Tier reflects study design, not enthusiasm.
Claim	Tier	Source
Natural vitamin E has about twice the bioavailability of synthetic vitamin E (deuterium labelling)	emerging	pmid 9537614
DL-alpha-tocopherol did not reduce carotid intima-media progression (VEAPS RCT)	established	pmid 12234947

Unanswered questions

No open questions on file. Either everything about this molecule is known, or nobody has admitted what is not.

Negative findings

failure is information

Nobody has filed a failure yet. Failures are information; this list is waiting for an honest one.