Navigating Vitamin Habits: Understanding Stroke Risk for Older Adults and Brain Health

As people get older, many look for vitamins and supplements to support memory, energy, and overall brain health. While some nutrients are important for normal brain function, taking supplements without a clear need can sometimes be unhelpful or even risky.

1. Avoid taking high-dose supplements without a reason

More vitamins are not always better. Excess amounts of certain nutrients can cause harm, especially in older adults who may have different medication needs or reduced kidney function.

2. Be careful with blood-thinning effects

Some supplements can affect bleeding risk or interact with medicines used to prevent strokes, such as anticoagulants or antiplatelet drugs. Always check before combining supplements with these medications.

3. Don’t rely on vitamins to replace a healthy diet

A diet rich in vegetables, fruits, whole grains, beans, fish, and healthy fats provides many nutrients that support heart and brain health.

4. Correct deficiencies—but confirm them first

Low levels of nutrients such as vitamin B12 can affect nerves and cognition, and treating a true deficiency can be beneficial. Testing is often more useful than guessing.

5. Watch “brain health” marketing claims

Many supplements are promoted for memory or stroke prevention, but strong evidence for preventing strokes in healthy older adults is limited for most products.

6. Consider interactions with medications

Common medications for blood pressure, cholesterol, heart disease, and stroke prevention can interact with certain supplements. A pharmacist or clinician can help review combinations.