Abstract
IntroductionThe influence of mixed dietary patterns on cognitive changes is unknown. MethodsA total of 2223 dementia-free participants aged ≥60 were followed up for 6 years to examine the impact of dietary patterns on cognitive decline. Mini-mental state examination (MMSE) was administered. Diet was assessed by a food frequency questionnaire. By factor analysis, Western and prudent dietary patterns emerged. Mixed-effect models for longitudinal data with repeated measurements were used. ResultsCompared with the lowest adherence to each pattern, the highest adherence to prudent pattern was related to less MMSE decline (β = 0.106, P = .011), whereas the highest adherence to Western pattern was associated with more MMSE decline (β = −0.156, P < .001). The decline associated with Western diet was attenuated when accompanied by high adherence to prudent pattern. DiscussionHigh adherence to prudent diet may diminish the adverse effects of high adherence to Western diet on cognitive decline.
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