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The problem
Intervention: School-based lunch programme offering vegetable-rich meals provided to children on 3 school days per week
Who it was tested with: Children aged 7–13 years at primary schools in the Netherlands; intervention group at 3 schools, control group at 3 schools.
Children or communities are compared with a group that did not receive the intervention, or followed over years. This is the design that best separates what the intervention did from everything else that changed.
"Children aged 7-13 years at three primary schools received lunch on 3 school days per week, while three other schools served as controls. Pre- and post-intervention assessments measured cognition, well-being, food neophobia, food literacy, and skin carotenoid status using the Veggie Meter (VM). Post intervention, meal liking was assessed. 2 x 2 mixed ANOVAs were run (group x time)." This is a quasi-experimental controlled design with baseline and endline measurement in both groups, allowing for comparison over time.
The study was unable to test the efficacy of vegetable-rich meals because children did not consume sufficient amounts due to poor acceptance and cultural factors. The mechanisms preventing success may have masked any true intervention effects.
Across countries and designs
1 study · 1 country
