Medicine and Health

Dietary diversity is associated with longitudinal changes in hippocampal volume among Japanese community dwellers

R. Otsuka, Y. Nishita, et al.

This innovative study reveals a significant link between dietary diversity and hippocampal volume decline in Japanese community dwellers aged 40-89. Conducted by a team of experts including Rei Otsuka and Yukiko Nishita, the findings suggest that enhancing dietary diversity could be a promising preventative measure against hippocampal atrophy over time.

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Abstract

This study examines the longitudinal relationship between dietary diversity and hippocampal volume among 1683 Japanese community dwellers aged 40–89. Dietary intake was assessed using 3-day dietary records, and dietary diversity was measured using the Quantitative Index for Dietary Diversity. Hippocampal and total grey matter volumes were measured using MRI. Results showed a significant association between increased dietary diversity and smaller decreases in hippocampal volume over a 2-year period. The study suggests that dietary diversity may be a preventative strategy against hippocampal atrophy.

Publisher

Springer Nature

Published On

Sep 02, 2020

Authors

Rei Otsuka, Yukiko Nishita, Akinori Nakamura, Takashi Kato, Kaori Iwata, Chikako Tange, Makiko Tomida, Kaori Kinoshita, Takeshi Nakagawa, Fujiko Ando, Hiroshi Shimokata, Hidenori Arai

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