Evidence brief · Supplement

Vitamin E for All-cause mortality (high dose)

Evidence grade C — Meta-analysis suggests slight increase ≥400 IU

Overall grade
Grade C
Last revised
1
graded outcome
0
references listed

Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.

1 at grade C — 1 graded row

What is known

Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.

  • All-cause mortality (high dose)Evidence grade C

    Meta-analysis suggests slight increase ≥400 IU

    Smallmixed

What is uncertain

Read off the same rows as above. Nothing here is added that the entry does not itself record.

  • Thin evidence: All-cause mortality (high dose) (grade C).

The evidence in words

The verdict

For all-cause mortality (high dose), Vitamin E earns evidence grade C (small effect, mixed consistency) — the evidence is limited or mixed. Meta-analysis suggests slight increase ≥400 IU

How it might work

It sits in cell membranes and quenches lipid peroxidation, protecting polyunsaturated fats from oxidative chain reactions. The theory that this should prevent chronic disease drove decades of trials.

How to use it

Get it from nuts, seeds, and vegetable oils. Avoid routine high-dose (≥400 IU) supplements; niche therapeutic use belongs under medical supervision.

Safety & cautions

High doses thin the blood and raise bleeding risk, compounding anticoagulants and antiplatelets; meta-analyses link ≥400 IU/day to slightly higher mortality.

Bottom line

Skip the high-dose antioxidant capsules. Eat nuts and seeds. Reserve therapeutic doses for specific medical indications under care.

How it is used

As the entry records it, from the studies it summarises. Not a recommendation for you — doses that suit a trial population may not suit you.

Food-first
Nuts, seeds, oils; avoid routine ≥400 IU capsules.

Goes with

  • Vitamin ERead the full Vitamin E monographEvidence grade C

Entries that share this one's tags or conditions.

Sources

This entry lists no references of its own — it is assembled from the entries it links to, whose sources are on their pages.

Last revised . A grade is this entry's reading of the evidence, not medical advice.