Effect of multimedia interventions on children's fruit and vegetable consumption in a real-life setting

Purpose This paper aims to examine the effect of a food-inspired multimedia intervention on children's fruits and vegetables (F&V) consumption in a real-life setting during lunch. Design Children in an elementary school in Bologna (Italy) in third, fourth and fifth grade, aged between 9 and 12 years old, were examined (N = 171). Two different types of messages (generic and specific) were used to test message-tailoring in two separate intervention groups and one control group. The two intervention groups (classes) were presented with multimedia messages during an English lesson before lunchtime, and their eating behavior during lunch at school was observed. All children were served the first and second course, vegetables and fruit during lunchtime. Data was analyzed with R 3.4.2. Mann-Whitney U, Kruskal-Wallis and ANOVA tests were used to test for group differences, ordered logistic regression for modelling fruit and vegetable consumption. Findings The results show that children receiving a specific message targeting F&V consumed more fruit than the other two study groups. No effect on vegetable consumption was observed. Results from an ordered logit model support the notion that the multimedia message impacted fruit intake in the specific message group when taking other variables into account, such as F&V consumption and availability at home and children's attitude toward F&V. Originality While many studies have considered a group of intervention for understanding the effect of multimedia, this study is focused only on the effect of a message (generic or specific). Moreover, participants, children, were not informed that they were participating in a study on fruit and vegetables consumption, and thus were following their daily routine.