Eating Behaviors in Healthy Young Adult Twin Pairs Discordant for Body Mass Index

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Berntzen , B J , Jukarainen , S , Bogl , L H , Rissanen , A , Kaprio , J & Pietiläinen , K H 2019 , ' Eating Behaviors in Healthy Young Adult Twin Pairs Discordant for Body Mass Index ' , Twin Research and Human Genetics , vol. 22 , no. 4 , 1832427419000434 , pp. 220-228 .

Title: Eating Behaviors in Healthy Young Adult Twin Pairs Discordant for Body Mass Index
Author: Berntzen, Bram J.; Jukarainen, Sakari; Bogl, Leonie H.; Rissanen, Aila; Kaprio, Jaakko; Pietiläinen, Kirsi H.
Contributor organization: CAMM - Research Program for Clinical and Molecular Metabolism
Faculty of Medicine
University of Helsinki
Doctoral Programme in Biomedicine, Helsinki
Institute for Molecular Medicine Finland
University Management
Research Programs Unit
Department of Public Health
HUS Abdominal Center
Department of Medicine
Endokrinologian yksikkö
Genetic Epidemiology
Date: 2019-08
Language: eng
Number of pages: 9
Belongs to series: Twin Research and Human Genetics
ISSN: 1832-4274
Abstract: We aimed to study the eating behavioral traits that associate with body mass index (BMI) among BMI-discordant twin pairs. This cross-sectional study examined self-reported eating behaviors in 134 healthy young adult twin pairs (57 monozygotic [MZ] and 77 same-sex dizygotic [DZ]), of whom 29 MZ and 46 DZ pairs were BMI discordant (BMI difference >= 3 kg/m(2)). In both MZ and DZ BMI-discordant pairs, the heavier co-twins reported being less capable of regulating their food intake optimally than their leaner co-twins, mainly due to 'frequent overeating'. Furthermore, the heavier co-twins reported augmented 'disinhibited eating', 'binge-eating scores' and 'body dissatisfaction'. The twins agreed more frequently that the heavier co-twins (rather than the leaner co-twins) ate more food in general, and more fatty food, in particular. No significant behavioral differences emerged in BMI-concordant twin pairs. Overeating - measured by 'frequent overeating', 'disinhibited eating' and 'binge-eating score' - was the main behavioral trait associated with higher BMI, independent of genotype and shared environment.
Subject: Twins
body mass index
eating behavior
1184 Genetics, developmental biology, physiology
3121 General medicine, internal medicine and other clinical medicine
Peer reviewed: Yes
Usage restriction: openAccess
Self-archived version: acceptedVersion

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