Related Experiment Video
Updated: Mar 1, 2026

Breakfast Habits among Schoolchildren in the City of Uruguaiana, Brazil
Published on: July 29, 2020
Intervention study on school meal habits in Norwegian 10-12-year-old children
Kristine E IlløKken1, Elling Bere1, Nina C Øverby1
1Department of Public Health, Sport and Nutrition, University of Agder, Norway.
Aim:
The aim of this study was to investigate whether a free school meal every day was associated with children's intake of healthy food during school.
Methods:
A non-randomized study design with an intervention and a control group was used to measure change in children's meal habits at lunchtime. In total, 164 children participated; 55 in the intervention group and 109 in the control group. Children in the intervention group were served a free, healthy school meal every school day. Participating children completed a questionnaire at baseline and at 6 months' follow up. Possible associations were evaluated with a healthy food score, which was calculated based on a food frequency questionnaire on lunch habits at school. Chi-square and Independent Samples t-test were used to analyse the data.
Results:
At baseline, there was no significant difference in the healthy food score between the intervention and the control group ( p = 0.08). Children in the intervention group increased their healthy food score significantly compared with children in the control group after 6 months ( p ⩽ 0.01). Change in the healthy food score was mainly due to an increase in the intake of fruit ( p ⩽ 0.01), vegetables ( p ⩽ 0.01) and fish spread ( p = 0.02); all in favour of the intervention group.
Conclusions:
A serving of a free school meal every day for 6 months increased children's intake of healthy food at lunchtime compared with the control group. Further studies are needed to establish possible long-term effects.

