Eda Keskin, Betül Yılmazer, Ebrar Çalış · 2026 · Food and Health
This study examined the associations between ultra-processed food (UPF) consumption, sleep quality, and chronotype. This cross-sectional study included 200 healthy adults, with data collected on demographic-health characteristics, anthropometric measurements, UPF consumption using the Screening Questionnaire of Highly Processed Food Consumption (sQ-HPF), sleep quality using the Pittsburgh Sleep Quality Index (PSQI), and chronotype using the Morningness–Eveningness Questionnaire (MEQ). Participants’ mean age was 25.9±9.4 years; 54% were female. High UPF consumption was observed in 72.0% of participants, 74.0% had poor sleep quality, and 75.5% were classified as having an intermediate chronoty