Poster Topical Area: Chronobiology and Nutrition

Location: Auditorium

Poster Board Number: 177

P04-003 - Associations among Timing of Food Intake, Eating Behavior Traits and Psychobehavioral Factors in Overweight and Obese Individuals

Monday, Jun 11
8:00 AM – 3:00 PM

Introduction: Late distribution of food intake has recently been recognized as a determinant of obesity and few studies have observed that late eating is associated with a higher energy intake (EI). However, the mechanisms by which timing of food intake impacts body weight are not well understood. Objective: The aim of this study was to assess the associations among distribution of food intake, eating and psychobehavioral traits.
Overweight and obese individuals (n=304; age 38.7±8.4 years; BMI 33.2±3.4 kg/m2, 55.3% women) who participated in four studies were included in this cross-sectional study. EI was assessed using a three-day food record. The distribution of EI was assessed by calculating the percent of total EI from period 5 (5:00 pm to 7:59 pm) and period 6 (8:00 pm until bedtime). Eating behavior traits were assessed with the Three-Factor Eating Questionnaire and the Binge Eating Scale whereas psychobehavioral factors were evaluated using the Pittsburgh Sleep Quality Index, Body Esteem Scale, Beck Depression Inventory, State-Trait Anxiety Inventory and Perceived Stress Scale. Pearson correlations were used to assess the associations between distribution of EI and those variables among men and women.
Among women, percent EI from combined values of periods 5 and 6 was positively associated with disinhibition (r=0.26, p=0.001) and with habitual and situational susceptibility to disinhibition (r=0.22, p=0.005 and r=0.18, p=0.03, respectively). Percent EI from period 6 was positively associated with strategic dieting behavior (r=0.17, p=0.03) in women. In men, percent EI from periods 5 and 6 was negatively associated with susceptibility to hunger (r=-0.19, p=0.03) whereas percent EI from period 6 was positively correlated with susceptibility to hunger (r=0.18, p=0.0496). Percent EI from period 6 was also positively associated with depressive symptoms (r=0.22, p=0.02), perceived stress (r=0.23, p=0.01) and with state and trait-anxiety (r=0.22, p=0.02 and r=0.32, p=0.001, respectively) in men.
The results of this study suggest that a higher proportion of EI consumed later in the day is associated with suboptimal eating and psychobehavioral traits and could contribute to explain the association between a delayed distribution of food intake and obesity.

Funding Source:

This study was partly funded by a grant of the Ministère de l'Enseignement supérieur, Recherche, Science et Technologie du Québec. AT is the holder of the Canada Research Chair in Environment and Energy Balance. RJ is a recipient of a PhD scholarship from the Fonds de Recherche du Québec - Santé. SP is the recipient of a postdoctoral fellowship from MITACS Accelerated.

CoAuthors: Angelo Tremblay – Laval University; Véronique Provencher – Laval University; Shirin Panahi – Laval University; Vicky Drapeau – Laval University

Raphaelle Jacob

PhD student
Laval University, School of Nutrition, Institute of Nutrition and Functional Foods (INAF), Quebec Heart and Lung Institute Research Center, Quebec, Canada
Quebec City, Quebec, Canada