PT34 - ARE HOMEOSTATIC AND HEDONIC CUES DRIVING CIRCADIAN RHYTM AND OBESITY?
PT34
ARE HOMEOSTATIC AND HEDONIC CUES DRIVING CIRCADIAN RHYTM AND OBESITY?
H. Ozcaliskan Ilkay1,* on behalf of Sevval Goknur Atabey, Berat Koklu, Begum Karakozak, Nagehan Guleroglu, Yasemin Kalkan
1Nutrition and Dietetics, Erciyes University, Kayseri, Türkiye
Rationale: It has been recently demonstrated that early chronotype and early meal times are associated with smaller appetite, lower desire for high-fat foods and possibly mindful eating. Concordantly, it is suggested that obesity is closely related with increased hedonic hunger and decreased eating awareness.
Methods: Eligible participants (n=618, 256 male, 362 female, mean age 21.7±2.8 years) were recruited from Erciyes University's Main Campus. Anthropometric measurements were evaluated according to standardized protocols. The hedonic drive to eat was assessed by the Power of Food Scale, whose higher scores reflect higher hedonic hunger. The Mindful Eating Questionnaire was used to evaluate individuals' eating awareness; higher scores signified more mindful eating. Individual variability in chronotype was assessed with Morningness–Eveningness Questionnaire. Individuals with a difference of more than 1 hour between the two eating midpoints (weekday and weekend) were classified as having eating jetlag. The Univariate General Linear Model and the Mann Whitney U test were used.
Results: Individuals with the evening chronotype had lower awareness of eating as compared to the morning chronotype (3.49±0.04 Vs. 3.70±0.05; p=0.002) after correcting for BMI. Individuals experiencing eating jetlag had higher hedonic hunger as compared to those not experiencing eating jet lag after eliminating BMI's effect (3.44±0.04 Vs. 3.31±0.04; p=0.020).On the other hand, participants with waist-hip ratio at risk (for men >0.9, for women >0.8) and participants with BMI >30 kg/m2 had lower awareness of eating (respectively 3.49±0.41 Vs.3.60±0.46 p=0.020; 3.48±0.44 Vs. 3.62±0.45 p=0.000).
Conclusion: Synchronizing the circadian system through regular sleeping and meal patterns may strengthen homeostatic signals of satiation, improve appetite control, and may play a role in better long-term body weight regulation, particularly among susceptible individuals.
Disclosure of Interest: None declared