1. Don’t Take High-Dose Vitamins Without a Reason
Megadose supplements can cause side effects and may interact with medicines. The National Institute on Aging recommends avoiding unnecessary high-dose supplements unless advised by a healthcare professional.
2. Pay Attention to B Vitamins
Folate, vitamin B6, and vitamin B12 are involved in homocysteine metabolism. Some research suggests that B-vitamin supplementation may reduce stroke risk in certain populations, but the results aren’t consistent everywhere.
3. Vitamin B12 Can Be Especially Important
Older adults can have difficulty absorbing vitamin B12 from food. A deficiency can affect nerves and cause neurological problems, so testing may be appropriate when symptoms or risk factors are present.
4. Get Nutrients From Food First
Vegetables, fruits, beans, whole grains, nuts, seeds, fish, eggs, and other nutrient-rich foods provide vitamins along with fiber and other beneficial compounds.
5. Be Careful With Vitamin Interactions
Some supplements can interact with medications. For example, vitamin K can interfere with warfarin, an anticoagulant. Always tell your doctor or pharmacist about supplements you’re taking.
6. Don’t Rely on Vitamins Alone to Prevent Stroke
The most important stroke-prevention steps include controlling blood pressure, cholesterol, diabetes, smoking, physical activity, and other cardiovascular risk factors. Vitamins should not replace prescribed treatment.
Bottom line: Vitamins support normal body and brain function, but taking large doses isn’t a shortcut to preventing stroke or dementia. For older adults, the smartest approach is a nutritious diet, appropriate medical testing, and supplements only when they are actually needed.
