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A prospective study of diet quality and mental health in adolescents

Jacka, Felice N., Kremer, Peter J., Berk, Michael, de Silva-Sanigorski, Andrea M., Moodie, Marjorie, Leslie, Eva R., Pasco, Julie A. and Swinburn, Boyd A. 2011, A prospective study of diet quality and mental health in adolescents, PLos one, vol. 6, no. 9, pp. 1-7.

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Title A prospective study of diet quality and mental health in adolescents
Author(s) Jacka, Felice N.ORCID iD for Jacka, Felice N. orcid.org/0000-0002-9825-0328
Kremer, Peter J.ORCID iD for Kremer, Peter J. orcid.org/0000-0003-2476-1958
Berk, MichaelORCID iD for Berk, Michael orcid.org/0000-0002-5554-6946
de Silva-Sanigorski, Andrea M.
Moodie, MarjorieORCID iD for Moodie, Marjorie orcid.org/0000-0001-6890-5250
Leslie, Eva R.
Pasco, Julie A.ORCID iD for Pasco, Julie A. orcid.org/0000-0002-8968-4714
Swinburn, Boyd A.
Journal name PLos one
Volume number 6
Issue number 9
Start page 1
End page 7
Total pages 7
Publisher Public Library of Science
Place of publication San Francisco, Calif.
Publication date 2011-09
ISSN 1932-6203
Summary Objectives: A number of cross-sectional and prospective studies have now been published demonstrating inverse relationships between diet quality and the common mental disorders in adults. However, there are no existing prospective studies of this association in adolescents, the onset period of most disorders, limiting inferences regarding possible causal relationships.
Methods: In this study, 3040 Australian adolescents, aged 11–18 years at baseline, were measured in 2005–6 and 2007–8. Information on diet and mental health was collected by self-report and anthropometric data by trained researchers.
Results: There were cross-sectional, dose response relationships identified between measures of both healthy (positive) and unhealthy (inverse) diets and scores on the emotional subscale of the Pediatric Quality of Life Inventory (PedsQL), where higher scores mean better mental health, before and after adjustments for age, gender, socio-economic status, dieting behaviours, body mass index and physical activity. Higher healthy diet scores at baseline also predicted higher PedsQL scores at follow-up, while higher unhealthy diet scores at baseline predicted lower PedsQL scores at follow-up. Improvements in diet quality were mirrored by improvements in mental health over the follow-up period, while deteriorating diet quality was associated with poorer psychological functioning. Finally, results did not support the reverse causality hypothesis.
Conclusion: This study highlights the importance of diet in adolescence and its potential role in modifying mental health over the life course. Given that the majority of common mental health problems first manifest in adolescence, intervention studies are now required to test the effectiveness of preventing the common mental disorders through dietary modification.
Notes This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Language eng
Field of Research 111712 Health Promotion
Socio Economic Objective 920401 Behaviour and Health
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2011, Public Library of Science
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30038863

Document type: Journal Article
Collections: School of Psychology
Population Health
Open Access Collection
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Created: Tue, 18 Oct 2011, 13:02:45 EST by Jane Moschetti

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.