Children with healthier diets do better in school

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A new study in the Journal of School Health reveals that children with healthy diets perform better in school than children with unhealthy diets.

Led by Paul J. Veugelers, MSc, PhD of the University of Alberta, researchers surveyed around 5000 Canadian fifth grade students and their parents as part of the Children’s Lifestyle and School-Performance Study.

Information regarding dietary intake, height, and weight were recorded and the Diet Quality Index-International (DQI-I) was used to summarize overall diet quality. The DQI-I score ranges from 0 to 100, with higher scores indicating better diet quality. Less healthful dietary components included saturated fat and salt, while healthy foods were classified by fruits, vegetables, grains, dietary fiber, protein, calcium and moderate fat intake. 

A standardized literacy assessment was administered to the children. Multilevel regression methods were used to examine the association between indicators of diet quality and academic performance.

Students with an increased fruit and vegetable intake and less caloric intake from fat were significantly less likely to fail the literacy assessment. Relative to students in the group with the lowest DQI-I scores, students in the group with the best scores were 41 % less likely to fail the literacy assessment.

“We demonstrated that above and beyond socioeconomic factors, diet quality is important to academic performance,” the authors conclude. “These findings support the broader implementation and investment in effective school nutrition programs that have the potential to improve student’s diet quality, academic performance, and, over the long term, their health.”

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This study is published in the April 2008 issue of the Journal of School Health. Media wishing to receive a PDF of this article may contact .

Paul J. Veugelers, MSc, PhD, is affiliated with the School of Public Health at the University of Alberta and can be reached for questions at .

Journal of School Health is published ten times a year on behalf of the American School Health Association. It addresses practice, theory, and research related to the health and well-being of school-aged youth. The journal is a top-tiered resource for professionals who work toward providing students with the programs, services and the environment they need for good health and academic success.

Wiley-Blackwell was formed in February 2007 as a result of the acquisition of Blackwell Publishing Ltd. by John Wiley & Sons, Inc., and its merger with Wiley’s Scientific, Technical, and Medical business. Together, the companies have created a global publishing business with deep strength in every major academic and professional field. Wiley-Blackwell publishes approximately 1,400 scholarly peer-reviewed journals and an extensive collection of books with global appeal.

Contact: Amy Molnar

201-748-8844
Blackwell Publishing Ltd.

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