Larger dlPFC and vmPFC grey matter volumes are associated with high adherence to the Mediterranean diet: A cross-sectional study in older adults

Autor: Belina Rodrigues, Carlos Portugal-Nunes, Ricardo Magalhães, Liane Schmidt, Pedro Silva Moreira, José Miguel Soares, Teresa Costa Castanho, Paulo Marques, Nuno Sousa, Nadine Correia Santos
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Aging Brain, Vol 3, Iss , Pp 100064- (2023)
Druh dokumentu: article
ISSN: 2589-9589
DOI: 10.1016/j.nbas.2023.100064
Popis: Dietary self-control is associated with inter-individual differences in neuroanatomy. Yet, whether such inter-individual differences are also associated with healthier dietary patterns is yet to be determined. In this cross-sectional study, a total of 100 northern Portuguese older community-dwellers were assessed with regards to i) the adherence to a healthy dietary eating pattern – the Mediterranean diet (MedDiet), and ii) grey matter density (GMD) of brain regions associated with valuation and dietary self-regulation, the ventromedial (vmPFC) and dorsolateral prefrontal cortex (dlPFC), through voxel-based morphometry. Healthy food choices were ascertained through the Mediterranean Diet Adherence Screener (MEDAS) where higher scores indicated greater adherence to the MedDiet. Voxel-based morphometry showed that greater grey matter density in the dlPFC and vmPFC associated with a higher adherence to the MedDiet. These results replicate previous links between dietary decision-making measured under laboratory conditions and the neuroanatomy of the brain's valuation and self-control system. Importantly, they shed new light on the potential relevance of inter-individual differences in the neuroanatomy of these two brain regions for adhering to healthier dietary patterns in everyday life.
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