Observational studies have found that diets such as the Mediterranean, Dietary Approaches to Stop Hypertension (DASH), and Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diets are associated with a lower risk of cognitive decline and Alzheimer’s Disease. However, there isn’t enough evidence to say whether this benefit applies to all types of dementia.[1] Since most research has been observational, more robust evidence is needed before any dietary recommendations for dementia can be made.
How could diet affect dementia?
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•Last Updated: May 16, 2025
Observational studies suggest that diets like the Mediterranean, DASH, and MIND may lower the risk of cognitive decline and Alzheimer's disease, but there is insufficient evidence to determine whether these benefits extend to all types of dementia. More rigorous research is needed before making dietary recommendations for dementia.