“As a Brain Doctor, I’m Shocked: This Vitamin Raises Stroke Risk Overnight”
This headline is misleading and potentially dangerous. If it is referring to vitamin E, there is some legitimate research behind the concern—but vitamin E does not cause a stroke overnight.
What is the concern about vitamin E?
A 2010 meta-analysis of randomized trials involving more than 118,000 participants found that vitamin E supplementation was associated with a 22% relative increase in hemorrhagic (bleeding) stroke, while ischemic stroke was reduced by about 10%. The overall number of strokes was not significantly different.
P
PubMed
+1
However, later research has produced less definitive results. A 2021 systematic review of 18 randomized trials involving about 148,000 participants found no significant effect of vitamin E on total stroke and said the evidence wasn’t strong enough to establish that vitamin E increases hemorrhagic-stroke risk.
P
PubMed
+1
A newer 2024 meta-analysis likewise concluded that vitamin E alone did not reduce stroke incidence, while combinations with other antioxidants showed conflicting effects.
P
PubMed
So should older adults avoid vitamin E?
Not automatically.
There’s an important difference between:
🥜 Vitamin E obtained from foods such as nuts, seeds, vegetable oils, and some vegetables
💊 High-dose vitamin E supplements
The concerning research primarily involves supplementation, not eating normal amounts of vitamin-E-containing foods. In fact, observational research has associated higher dietary vitamin E intake with lower stroke risk, although that doesn’t prove the vitamin itself prevents stroke.
P
PubMed
⚠️ Don’t stop a prescribed medicine
If you take vitamin E—or a multivitamin containing it—don’t panic and don’t abruptly discontinue prescribed medications because of a social-media headline. Discuss the supplement with your doctor or pharmacist, particularly if you have a history of stroke or bleeding or take medicines that affect blood clotting.
And the phrase “raises stroke risk overnight” is not supported by the evidence. The studies examined risk over months or years, not an immediate overnight effect.
Bottom line: Vitamin E supplements aren’t a proven way to prevent stroke, and high-dose supplementation deserves caution. But saying that one vitamin suddenly causes strokes in seniors is an exaggeration of a complicated body of evidence.
P
Sources
