Increasing prevalence of obesity in the world and increasing role of processed foods in daily life has led to become the focal point of food addiction. This study aims to investigation of food addiction and impulsivity relations biological rhythms differences and insomnia in university students.

One thousand and five hundred students planned to participate who studies in Konya Selcuk University central campus. Participants were to fill out the test during their classes under physician supervision. The volunteers completed a package of psychological instruments including the Morningness–Eveningness Questionnaire, Yale Food Addiction Scale, Insomnia Severity Index, and Barratt Impulsiveness Scale administered by two investigators in their classrooms.

In total, 1323 forms were suitable for statistical analysis. The mean age was 20.83, mean BMI was 22.02. Food addiction prevalence was 18.2%. Our study showed that association between the eveningness type and food addiction (P < 0.045). Also, the eveningness type and insomnia were in positive correlation in impulsivity (P < 0.001).

This study has explored the association between eveningness type of biological rhythms, food addiction, insomnia and impulsivity.

The authors have not supplied their declaration of competing interest.