Click for my description of the traditional Mediterranean diet.
From a recent study done in Germany:
These data suggest that closer adherence to MedD (the Mediterranean diet) was associated with better performance in verbal memory in patients with type 2 diabetes with known diabetes duration ≥5 years, but not in patients with recently diagnosed type 2 diabetes or in patients with type 1 diabetes or metabolically healthy individuals.
The MedD has been already reported to exert beneficial effects on cardiovascular disease and additionally on cognitive performance mainly in healthy elderly individuals or individuals with increased cardiovascular risk. The present results show an association between MedD and verbal memory in individuals with diabetes. Although the underlying mechanisms are currently unknown, one may speculate that the high content of antioxidants in MedD may contribute to better cognitive performance by reducing the production of reactive oxygen species and attenuating inflammatory processes, both of which have been linked to cognitive decline. Furthermore, positive effects might be mediated by n-3 fatty acids (FA). Higher dietary n-3 FA intake or circulating blood n-3 FA levels have been associated with better global or single cognitive function which was mainly explained by their anti-inflammatory, antioxidative and antithrombotic properties. However, the influence of n-3 FA is controversial according to the literature, as not all studies observed beneficial effects, possibly due to different study designs, methods and varying quality of studies.
Source: Associations between cognitive performance and Mediterranean dietary pattern in patients with type 1 or type 2 diabetes mellitus | Nutrition & Diabetes
Steve Parker, M.D.
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