A pilot project in Kristiansand in Norway aimed to study whether service of a free school lunch has an impact on weight development and food intake among pupils at a lower secondary school. A free healthy school lunch was served to 9th grade pupils over 4 months, from January to May 2007. Weight and height were measured before and after the intervention.
BMI did not increase among the girls at the intervention school, but increased significantly among the boys at the intervention school and among the control school groups. Further studies are needed to clarify the impact of school meals on overweight and academic performance.