Evidence mapPaperPMID 40524496Full record

ArticlePsychiatry and clinical neurosciences2025

Association between the Japanese-style diet and low prevalence of depressive symptoms: Japan Epidemiology Collaboration on Occupational Health Study.

Haruka Miyake, Akiko Nanri, Hiroko Okazaki, Toshiaki Miyamoto, Takeshi Kochi, Isamu Kabe, Aki Tomizawa, Shohei Yamamoto, Maki Konishi, Seitaro Dohi and 1 more

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Article in Psychiatry and clinical neurosciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

11 authors.

Haruka MiyakeDepartment of Epidemiology and Prevention, Center for Clinical Sciences, Japan Institute for Health Security, Tokyo, Japan.ORCID https://orcid.org/0000-0002-9264-0931
Akiko NanriDepartment of Food and Health Sciences, International College of Arts and Sciences, Fukuoka Women's University, Fukuoka, Japan.ORCID https://orcid.org/0000-0002-7487-8778
Hiroko OkazakiMitsui Chemicals, Inc., Tokyo, Japan.
Toshiaki MiyamotoNippon Steel Corporation, East Nippon Works Kimitsu Area, Chiba, Japan.
Takeshi KochiFurukawa Electric Co., Ltd., Tokyo, Japan.
Isamu KabeKUBOTA Corporation Co., Ltd., Ibaraki, Japan.
Aki TomizawaHealth Design Inc., Tokyo, Japan.
Shohei YamamotoDepartment of Epidemiology and Prevention, Center for Clinical Sciences, Japan Institute for Health Security, Tokyo, Japan.
Maki KonishiDepartment of Epidemiology and Prevention, Center for Clinical Sciences, Japan Institute for Health Security, Tokyo, Japan.
Seitaro DohiMitsui Chemicals, Inc., Tokyo, Japan.
Tetsuya MizoueDepartment of Epidemiology and Prevention, Center for Clinical Sciences, Japan Institute for Health Security, Tokyo, Japan.

Funding

Industrial Health Foundation, Industrial Disease Clinical Research 140202-01Industrial Health Foundation, Industrial Disease Clinical Research 150903-01Industrial Health Foundation, Industrial Disease Clinical Research 170301-01JIHS Intramural Research Fund 25A1005JSPS KAKENHI JP16H05251JSPS KAKENHI JP20H03952JSPS KAKENHI JP25293146JSPS KAKENHI JP25702006NCGM Intramural Research Fund 19A1006NCGM Intramural Research Fund 21A1020NCGM Intramural Research Fund 22A1008NCGM Intramural Research Fund 28-Shi-1206NCGM Intramural Research Fund 30-Shi-2003
6 · The paper itself

Abstract

aimThe Japanese diet, rich in fish, soy products, and green tea, is associated with better mental health. However, associations between Japanese dietary patterns and depressive symptoms remain inconsistent, with limited research on predefined patterns. This study developed scores for traditional and modified Japanese diets to explore their cross-sectional associations with depressive symptoms in a large working population.

methodsAs part of the Japan Epidemiology Collaboration on Occupational Health Study, we conducted a survey between 2018 and 2021. Diet was assessed using a validated food frequency questionnaire. Scores were developed for the traditional Japanese diet (9 items: white rice, miso soup, soy products, cooked vegetables, mushrooms, seaweed, fish, salty foods, green tea) and its modified version (11 items: whole or minimally processed rice instead of white rice, reverse scoring for salty foods, and adding fruits, raw vegetables, dairy products). Depressive symptoms were assessed using the 11-item Center for Epidemiological Studies-Depression Scale (cutoff ≥9). Multilevel Poisson regression with robust variance estimated prevalence ratios (PRs) and 95% confidence intervals (CIs), adjusting for confounders and accounting for study site as a random effect.

resultsAmong 12,499 participants (76.8% participation), 30.9% reported depressive symptoms. The PRs of depressive symptoms across quartiles of the traditional Japanese diet score were 1.00 (reference), 0.94 (95% CI, 0.88-0.99), 0.91 (95% CI, 0.85-0.98), and 0.83 (95% CI, 0.80-0.86), and those for the modified version were 1.00 (reference), 0.94 (95% CI, 0.89-0.98), 0.83 (95% CI, 0.80-0.87), and 0.80 (95% CI, 0.76-0.83).

conclusionClose adherence to the traditional and modified Japanese diet score is associated with fewer depressive symptoms among the working population.

Indexed as

DepressionDietFeeding BehaviorOccupational HealthAdultCross-Sectional StudiesEast Asian PeopleFemaleHumansJapanMaleMiddle AgedPrevalencedepressive symptomsdietary patternJapanese dietmental healthworker

Identifiers

PMID40524496
PMCPMC12319640

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.