ArticleNutrition research and practice2026
Association of healthy lifestyle and dietary practices with prediabetes among young Korean adults: sex-specific findings from KNHANES 2020-2024.
Article in Nutrition research and practice, 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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Abstract
BACKGROUND/
objectivesDespite the increasing prevalence of prediabetes among young Korean adults, evidence regarding modifiable lifestyle and dietary factors in this population remains limited. This study investigated the association of healthy lifestyle and dietary practices with prediabetes among Korean adults aged 19-34 yrs using sex-specific analyses. SUBJECTS/
methodsThis cross-sectional study examined data from 3,865 participants (1,805 men and 2,060 women) in the Korea National Health and Nutrition Examination Survey 2020-2024. Prediabetes was defined as a fasting plasma glucose level of 100-125 mg/dL or a glycated hemoglobin level of 5.7-6.4% without diagnosed diabetes. Healthy lifestyle practices included nonsmoking, moderating drinking, and walking. Healthy dietary practices comprised appropriate fat intake (15-30% of energy), sodium intake of ≤ 2,300 mg/day, fruit and vegetable intake of ≥ 500 g/day, and nutrition label use. Multivariable logistic regression analyses were conducted to estimate odds ratios (ORs) and 95% confidence intervals (CIs).
resultsIn this study, 15.9% of participants had prediabetes. Participants with prediabetes had higher body mass index and lower engagement in muscle-strengthening exercise in both sexes. Among men, prediabetes was associated with more frequent eating out and lower nutrition label use, and among women, it was associated with higher dietary fat density and lower fiber intake density. In men, adherence to healthy dietary practices was significantly associated with lower odds of prediabetes after multivariable adjustment (adjusted OR, 0.72; 95% CI, 0.54-0.96;
conclusionHealthy dietary practices were inversely associated with prediabetes among young Korean men, whereas healthy lifestyle practice indicators showed no significant correlation. These findings suggest that early, sex-specific dietary strategies may be relevant for metabolic risk management among young adults.
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