Associação entre comportamentos crononutricionais e cronotipo, qualidade e duração do sono, eating jet lag, jet lag social e índice de massa corporal em adultos

Abstract

The study aimed to evaluate the association between the chrononutritional behaviors of skipping breakfast and having snacks after the last meal with chronotype, quality and duration of sleep, eating jet lag, social jet lag and BMI in adult individuals. This is a cross-sectional observational epidemiological survey with a quantitative approach, carried out virtually, using the Chrononutritional Profile Questionnaire (QP-C), the Pittsburgh Sleep Quality Index (IQSP), and the Munich Chronotypes Questionnaire (MCTQ). 627 Brazilians, between 18 and 59 years old, of both sexes, participated in the survey. The results showed that skipping breakfast is associated with poor sleep quality and the afternoon chronobiological profile, and having snacks after dinner was related to shorter sleep duration and eveningness. As for the other variables addressed in the study, eating jet lag was associated with chronotype, social jet lag, sleep quality and sleep duration on free days. Sleep quality was related to body mass index (BMI), chronotype, social jet lag, and sleep duration on work/study days. Chronotype was also associated with social jet lag and sleep duration on work/study days. In addition to these associations, BMI was also related to sleep duration on work/study days, as well as on free days. The results of this research can help in the elaboration of new perspectives for nutritional approaches that consider the organism's biological temporal organization.