The Role of Nutrition in Cognitive Function and Brain Ageing in the Elderly
Purpose of Review
The purposes of this review were to examine literature published over the last 5 years and to evaluate the role of nutrition in cognitive function and brain ageing, focussing on the Mediterranean diet (MeDi), Dietary Approaches to Stop Hypertension (DASH), and Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diets.
Results suggest that higher adherence to a healthy dietary pattern is associated with preservation of brain structure and function as well as slower cognitive decline, with the MIND diet substantially slowing cognitive decline, over and above the MeDi and DASH diets.
Whilst results to-date suggest adherence to a healthy diet, such as the MeDi, DASH, or MIND, is an important modifiable risk factor in the quest to develop strategies aimed at increasing likelihood of healthy brain ageing, further work is required to develop dietary guidelines with the greatest potential benefit for public health; a research topic of increasing importance as the world’s population ages.
KeywordsNutrition Diet Dietary patterns Mediterranean diet MeDi Dietary Approaches to Stop Hypertension diet DASH diet Mediterranean-DASH Intervention for Neurodegenerative Delay diet MIND diet Cognition Cognitive decline Magnetic resonance imaging MRI Brain volume Glucose metabolism Amyloid beta Ageing Alzheimer’s disease
Compliance with Ethical Standards
Conflict of Interest
Samantha L. Gardener and Stephanie R. Rainey-Smith declare they have no conflict of interest.
Human and Animal Rights and Informed Consent
This article does not contain any studies with human or animal subjects performed by any of the authors.
Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance
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