This cross-sectional study analyzed 12,759 students aged 14.2 ± 1.7 years.
Nutrients · 7 authors, 2 centres
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This cross-sectional study analyzed 12,759 students aged 14.2 ± 1.7 years.
This cross-sectional study analyzed 12,759 students aged 14.2 ± 1.7 years. It examined associations between chrononutrition indices (eating mid-phase, eating jetlag, eating window, and frequency of night eating) and outcomes including grade point average (GPA), depression (Zung Self-Rating Depression Scale), food addiction (Yale Food Addiction Scale), and body mass index (BMI). Results showed U-shaped or inverted U-shaped associations for most indices with GPA, depression, and food addiction, meaning both very low and very high values were linked to poorer outcomes. Night eating frequency showed a linear association, being the strongest predictor of depression, food addiction, and lower GPA. Weak inverse linear associations were found between BMI and both eating window and night eating frequency. The study concludes that circadian eating disorders are more common in adolescents with poor academic performance, high depression, and food addiction. Limitations include the cross-sectional design, which cannot establish causation.