Mediterranean diet is associated with lower white matter lesion volume in Mediterranean cities and lower cerebrospinal fluid Aβ 42 in non-Mediterranean cities in the EPAD LCS cohort.

Sarah Gregory*, Kaj Blennow, Craig W Ritchie, Oliver M Shannon, Emma J Stevenson, Graciela Muniz-Terrera

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

The Mediterranean diet (MedDiet) has been associated with better brain health and reduced incidence of dementia. Few studies have compared the effects of the MedDiet in early Alzheimer's disease or compared the effects of the diet within and outside of the Mediterranean region. The Mediterranean diet adherence screener (MEDAS) and MEDAS continuous scores were calculated at the baseline visit of the European Prevention of Alzheimer's Dementia Longitudinal Cohort Study (n = 1625). The scores were included in linear regression models to test for associations with hippocampal volume, log-transformed white matter lesion volume, cerebrospinal fluid pTau 18, and Aβ 42. Higher MEDAS scores were associated with lower log-transformed white matter lesion volume (β: -0.07, standard error [SE]: 0.02, p < 0.001). This association was only seen in the Mediterranean region (β: -0.12, SE: 0.03, p < 0.001). In the non-Mediterranean region, higher MEDAS continuous scores were associated with lower cerebrospinal fluid Aβ 42 (β: -68.30, SE: 14.32, p < 0.001). More research is needed to understand the differences in the associations seen with the MedDiet and Alzheimer's disease biomarkers in different European regions.

Original languageEnglish
Pages (from-to)29-38
Number of pages10
JournalNeurobiology of Aging
Volume131
Early online date20 Jul 2023
DOIs
Publication statusE-pub ahead of print - 20 Jul 2023

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