Evidence map›Paper›PMID 42123935›Full record

ArticleNutrients2026

Food- and Nutrient-Based Dietary Patterns and Depression in Korean Adults: A Machine Learning Approach Using KNHANES 2016-2021.

Eunje Kim, Youjin Je

Abstract read
In one paragraph

Article in Nutrients, 2026. 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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4 · The record

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5 · Who and what money

Authors and funding

2 authors.

Eunje KimDepartment of Food and Nutrition, Kyung Hee University, Seoul 02447, Republic of Korea.ORCID 0000-0001-9117-5399
Youjin JeDepartment of Food and Nutrition, Kyung Hee University, Seoul 02447, Republic of Korea.ORCID 0000-0002-2099-4204

Funding

Ministry of Science and ICT RS-2025-00562173
6 · The paper itself

Abstract

BACKGROUND/

objectivesDietary patterns may influence depression, yet findings remain inconsistent, partly due to methodological variation in dietary pattern identification. As data-driven approaches may help reduce subjectivity and improve reproducibility in dietary pattern identification, this study aimed to identify dietary patterns using a machine learning approach and examine their associations with depression among Korean adults.

methodsUsing data from 21,321 Korean adults aged 19-64 years from the Korea National Health and Nutrition Examination Survey (2016-2021), we applied K-means clustering to identify dietary patterns based on both food group and nutrient intake. Dietary intake was assessed using a 24 h dietary recall, and depression status was based on physician diagnosis.

resultsThree distinct patterns were identified in both food group-based and nutrient-based analyses. In the food group-based analysis, a balanced and diverse dietary pattern (Cluster 3) was associated with lower odds of depression compared with a pattern characterized by overall low food intake (Cluster 1) (OR 0.64; 95% CI, 0.47-0.88;

conclusionsOur findings suggest that adherence to balanced and diverse dietary patterns based on whole foods is associated with lower odds of depression. Food group-based clustering approaches may offer more reproducible and interpretable insights than nutrient-based approaches, supporting their potential utility in epidemiological research and public health strategies.

Indexed as

DepressionDietFeeding BehaviorMachine LearningAdultCluster AnalysisClustering AlgorithmsCross-Sectional StudiesFemaleHumansMaleMiddle AgedNutrition SurveysRepublic of KoreaYoung Adultcross-sectional studydepressiondietary patternsK-means clusteringKNHANESmachine learningmental healthnutritional epidemiology

Identifiers

PMID42123935
PMCPMC13165164

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