Body satisfaction and body weight in under- and healthy-weight adolescents : Mediating effects of restrictive dieting, healthy and unhealthy food intake

Journal article


Zarychta, Karolina, Chan, C., Kruk, Magdalena and Luszczynska, Aleksandra. (2020). Body satisfaction and body weight in under- and healthy-weight adolescents : Mediating effects of restrictive dieting, healthy and unhealthy food intake. Eating and Weight Disorders. 25, pp. 41-50. https://doi.org/10.1007/s40519-018-0496-z
AuthorsZarychta, Karolina, Chan, C., Kruk, Magdalena and Luszczynska, Aleksandra
Abstract

Purpose
Theoretical models, such as the transdiagnostic model of eating disorders highlight the role of cognitive factors (e.g., the way people perceive their bodies) and their associations with maladaptive weight management behaviors resulting in underweight. This paper aims at testing the indirect association of adolescent’s body satisfaction and body mass index (BMI) through restrictive dieting, healthy eating or unhealthy eating as well as moderating role of adolescent’s weight status.

Methods
The study was conducted in 16 public middle and high schools in Central and Eastern Poland. A sample of 1042 under- and healthy-weight white adolescents aged 13–20 (BMI: 12.63–24.89) completed two self-reported questionnaires (fruit, vegetable, and energy-dense food intake) with a 11-month interval. Weight and height were measured objectively. Multiple mediation analysis and moderated multiple mediation analysis were conducted to test the study hypotheses.

Results
Adolescents less satisfied with their bodies were more likely to diet restrictively and at the same time ate more unhealthy energy-dense food rather than healthy food, which in turn predicted lower BMI. No moderating effects of weight status were found.

Conclusions
Low body satisfaction is a risk for restrictive diet and unhealthy food intake. Prevention programs may target under- and healthy-weight adolescents who are highly dissatisfied with their bodies, have a high intake of energy-dense food and apply a restrictive diet at the same time.

Level of evidence
Level III: longitudinal cohort study.

Keywordsbody satisfaction; body weight; healthy eating; unhealthy eating; restrictive dieting; adolescence
Year2020
JournalEating and Weight Disorders
Journal citation25, pp. 41-50
PublisherSpringer International Publishing
ISSN1124-4909
Digital Object Identifier (DOI)https://doi.org/10.1007/s40519-018-0496-z
Scopus EID2-s2.0-85043388947
Open accessPublished as ‘gold’ (paid) open access
Research or scholarlyResearch
Page range41-50
Publisher's version
License
File Access Level
Open
Output statusPublished
Publication dates
Online08 Mar 2018
Publication process dates
Accepted26 Feb 2018
Deposited26 May 2021
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