That headline is likely sensationalized. There is no common vitamin that has been definitively shown to raise stroke risk in most seniors when taken at recommended doses. The claim usually refers to one of a few specific situations:
- Vitamin E: High-dose supplements (typically 400 IU/day or more) have been linked in some studies to a slightly increased risk of hemorrhagic (bleeding) stroke, though not necessarily all strokes. This risk is mainly a concern with high-dose supplements, not vitamin E from food.
- Vitamin K: This vitamin does not increase stroke risk on its own, but it can interfere with the blood thinner warfarin if intake varies widely. People taking warfarin should keep their vitamin K intake consistent.
- Vitamin B6 or niacin: Very high doses can cause other health problems, but they are not established causes of increased stroke risk in the general population.
For most older adults:
- Getting vitamins from a balanced diet is generally preferred.
- Avoid taking high-dose vitamin supplements unless a healthcare professional recommends them.
- Tell your doctor about all supplements you take, especially if you use blood thinners or have a history of stroke or heart disease.
If you can share the article or tell me which vitamin it mentions, I can explain whether the claim is supported by scientific evidence.
