Overview
No diet prevents dementia, but eating patterns that support vascular health likely benefit the brain, and weight loss in dementia predicts decline.
General pattern
- Vegetables, fruit, whole grains, legumes, nuts
- Fish and olive oil
- Limited processed food and added sugar
- Adequate fluids
As dementia advances
- Prioritize calories and enjoyment over restriction
- Offer finger foods and smaller frequent meals
- Watch for swallowing difficulty
- Track weight monthly
Medically reviewed. Last reviewed August 2026. This page is educational information, not individualized medical advice.