Age-specific association between dietary nutrient adequacy and self-rated health in Korean adolescents: a cross-sectional study based on the Korea National Health and Nutrition Examination Survey 2022–2024
Background Self-rated health (SRH) reliably predicts mortality and chronic disease risk, yet the association between the mean adequacy ratio (MAR), a nutrient adequacy index, and SRH in Korean adolescents remains underexplored. Methods This cross-sectional study analyzed 1,053 adolescents aged 12–18 years from Korea Na...