Mixed
Adherence to a Mediterranean diet supplemented with extra-virgin olive oil (1 L/week) or mixed nuts (30 g/day) slows age-related cognitive decline in older adults at high cardiovascular risk compared to a low-fat control diet.
To support cognitive health as you age, adopt a Mediterranean dietary pattern enriched with specific healthy fats. Specifically, aim for approximately 1 liter of extra-virgin olive oil per week and 30 grams of mixed nuts (walnuts, hazelnuts, almonds) daily. This approach has been shown in a major clinical trial to slow cognitive decline in older adults at high cardiovascular risk, outperforming standard low-fat dietary advice.
In an older population, a Mediterranean diet supplemented with olive oil or nuts is associated with improved cognitive function.
Why this rating
Randomized clinical trial with long-term follow-up (median 4.1 years) and rigorous adjustment for confounders.
Source
Mediterranean Diet and Age-Related Cognitive Decline
Cinta Valls‐Pedret et al. · JAMA Internal Medicine · 2015
DOI 10.1001/jamainternmed.2015.1668
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