This research was funded by the Canadian Population Health Initiative and a Canada Research Chair in Population Health to P.J.V. (grant 42753). Financial support was also provided by the Centre for Urban Health Initiatives’ (CUHI) graduate student fellowship to M.D.F. CUHI is funded by the Institute of Populations and Public Health, as part of a strategic initiative of the Canadian Institutes of Health Research to create research development centers.
Diet Quality and Academic Performance*
Article first published online: 12 MAR 2008
© 2008, American School Health Association
Journal of School Health
Volume 78, Issue 4, pages 209–215, April 2008
How to Cite
Florence, M. D., Asbridge, M. and Veugelers, P. J. (2008), Diet Quality and Academic Performance. Journal of School Health, 78: 209–215. doi: 10.1111/j.1746-1561.2008.00288.x
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- Issue published online: 12 MAR 2008
- Article first published online: 12 MAR 2008
- nutrition and diet;
- child and adolescent health;
- public health
Background: Although the effects of nutrition on health and school performance are often cited, few research studies have examined the effect of diet quality on the academic performance of children. This study examines the association between overall diet quality and academic performance.
Methods: In 2003, 5200 grade 5 students in Nova Scotia, Canada, and their parents were surveyed as part of the Children’s Lifestyle and School-performance Study. Information on dietary intake, height, and weight and sociodemographic variables were linked to results of a provincial standardized literacy assessment. Diet Quality Index—International was used to summarize overall diet quality. Multilevel regression methods were used to examine the association between indicators of diet quality and academic performance while adjusting for gender and socioeconomic characteristics of parents and residential neighborhoods.
Results: Across various indicators of diet quality, an association with academic performance was observed. Students with decreased overall diet quality were significantly more likely to perform poorly on the assessment. Girls performed better than boys as did children from socioeconomically advantaged families. Children attending better schools and living in wealthy neighborhoods also performed better.
Conclusions: These findings demonstrate an association between diet quality and academic performance and identify specific dietary factors that contribute to this association. Additionally, this research supports the broader implementation and investment in effective school nutrition programs that have the potential to improve student access to healthy food choices, diet quality, academic performance, and, over the long term, health.