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Does colour variety accurately quantify nutritional value in children's lunchboxes? A pilot study.

D E Courtney1, É J O'Reilly1

  • 1School of Public Health, University College Cork, 4th Floor, Western Gateway Building, Western Road, Cork, Ireland.

Public Health in Practice (Oxford, England)
|February 28, 2023
PubMed
Summary

Dietary color variety in children's lunches did not correlate with nutritional scores. However, lunches with fruits and vegetables showed more color diversity, suggesting potential benefits for future dietary guidelines.

Keywords:
ChildrenColourEatingFruitPublic health nutritionVegetables

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Area of Science:

  • Nutrition Science
  • Public Health
  • Pediatric Nutrition

Background:

  • Public health guidelines recommend diets rich in fruits and vegetables, emphasizing color variety for nutrient intake.
  • The relationship between the visual diversity of food colors and nutritional quality in children's diets requires further investigation.

Purpose of the Study:

  • To evaluate the association between food color variety and nutritional value in children's packed lunches.
  • To assess the Nutri-score of lunches and its correlation with the number of colors present.

Main Methods:

  • An observational, cross-sectional study involving photography of 82 children's lunchboxes.
  • Foods were assessed using the Nutri-score system, and composite scores were calculated. Color variety was determined using a standardized color chart.

Main Results:

  • Children's lunchboxes averaged 4 colors, with no variation by age or sex.
  • No direct association was found between color variety and composite Nutri-score.
  • Lunches with greater color variety included more fruits, vegetables, whole grains, and fats. Higher Nutri-scores were associated with vegetables, meat, fish, and eggs.

Conclusions:

  • While color variety did not directly correlate with nutritional scores, lunches with fruits and vegetables tended to be more colorful.
  • Findings suggest that incorporating food color variety into dietary guidelines for children may be beneficial.