<![CDATA[Overweight and obesity remain major public health concerns in Indonesia and may be influenced by various factors, including chrononutrition behaviors related to meal timing and eating frequency, snacking habits, physical activity, sleep patterns, stress levels, ultra-processed food (UPF) consumption, allowance, and sex. Students living in dormitories may experience lifestyle changes associated with greater independence, which can affect their nutritional status. This study aimed to analyze the association between chrononutrition behaviors and other factors with the nutritional status of dormitory students at Universitas Indonesia in 2026. This cross-sectional study was conducted from April to May 2026. Participants were recruited using purposive sampling through research posters distributed via dormitory communication channels and social media. Of the 225 students who participated, 209 met the eligibility criteria and completed all study procedures, representing 16.2% of the target population of 1,289 Universitas Indonesia dormitory students. Nutritional status was assessed using Body Mass Index (BMI) and body fat percentage (BFP). Data were analyzed using IBM SPSS Statistics version 25. Descriptive statistics, Chi-square or Fisher’s exact tests, and multivariable logistic regression were used for data analysis. The results showed that the prevalence of overweight/overfat and obesity was 31.1% based on BMI and 20.6% based on BFP. Male was significantly associated with overweight/obesity based on BMI, while male and frequent snacking were significantly associated with overfat/obesity based on BFP. In the multivariable analysis, male was significantly associated with higher odds of overweight/obesity based on BMI (AOR = 2.321; 95% CI: 1.203–4.479; p = 0.012). For BFP, male (AOR = 10.626; 95% CI: 3.879–29.108; p < 0.001) frequent snacking (AOR = 5.221; 95% CI: 1.857–14.677; p = 0.002), and largest meal timing (AOR = 0.310; 95% CI: 0.105–0.917; p = 0.034) were significantly associated with overfat/obesity. Meanwhile, most chrononutrition behaviors and other factors examinedwere not significantly associated with nutritional status. These findings suggest that male, frequent snacking habits, and largest meal in night time are factors associated with the nutritional status of dormitory students and may serve as a basis for developing health promotion programs to support the achievement of optimal nutritional status.]]>
