Mixed
Adherence to the Mediterranean diet (MeDi) is associated with improved cognitive performance and a delay in cognitive decline in elderly populations, particularly when enriched with extra virgin olive oil or nuts.
Adopt a Mediterranean-style eating pattern focusing on extra virgin olive oil, vegetables, fruits, whole grains, and nuts. This approach is more effective for cognitive health than taking single supplements. Prioritize high-polyphenol olive oil and moderate wine intake if appropriate for your health profile.
A longitudinal investigation conducted by CINTA found that among local elderly cohorts in the U.S., France, Spain, and Greece, adherence to the Mediterranean diet, particularly when enhanced with olive oil or nuts, was associated with improved cognitive performance (23).
Why this rating
Supported by multiple longitudinal studies and RCTs mentioned in the review, though the paper itself is a review.
Source
The intricate interplay between dietary habits and cognitive function: insights from the gut-brain axis
Ruyi Zhang et al. · Frontiers in Nutrition · 2025
DOI 10.3389/fnut.2025.1539355
More from this paper
- Plant-based diets, particularly those emphasizing nutritious plant foods, are associated with a reduced risk of cognitive impairment and dementia compared to non-vegetarian diets.Good
- Low-carbohydrate diets (LCDs) and calorie restriction can improve cognitive function and combat age-related cognitive decline through mechanisms involving reduced oxidative stress, anti-inflammatory responses, and enhanced neurogenesis.Moderate
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