Bottom line

For most people in their 60s who are otherwise healthy, a banana a day is perfectly fine and often helpful. The key is balance—what matters more is the overall diet, not a single fruit.
If you want, tell me their health situation (like blood pressure, diabetes, kidney health), and I can give a more tailored answer.
There are a few situations where daily bananas might need moderation:
- Chronic kidney disease: The kidneys may not remove potassium efficiently, so high-potassium foods like bananas can be risky.
- Certain heart medications (like ACE inhibitors or potassium-sparing diuretics): These can also raise potassium levels.
- Diabetes or blood sugar concerns: Bananas contain natural sugars and carbs, so portion and ripeness matter (riper bananas raise blood sugar faster).
Bottom line

For most people in their 60s who are otherwise healthy, a banana a day is perfectly fine and often helpful. The key is balance—what matters more is the overall diet, not a single fruit.
If you want, tell me their health situation (like blood pressure, diabetes, kidney health), and I can give a more tailored answer.