Intermediate and secondary school food environment in New Zealand: Food and drink menu assessment

Nutrition-related obesity is rising among adolescents in New Zealand with an estimated one in eight children being obese. The school environment is an ideal community setting for encouraging a healthy lifestyle as schools contain a diverse population and involve students and parents. However, the healthiness of food available to intermediate and secondary school students (Years 7-13) is unknown. This study assessed how food and drink menus from schools align with policy guidelines for healthy school food environments.

A convenience sample of NZ schools' (years 7-13; ages 10-19) menus was collected in 2020. Menus were classified using traffic light criteria. A toolkit was developed by three nutritionists and one dietitian (with trained staff support) to aid with menu classification. Menu quality was evaluated against school characteristics and policy use.

Of the school menus assessed (n = 60), 3.3% met the recommendation for the provision of 75% 'green' items. 'Red' items were the main contributors (mean = 53.6%). Schools with high socio-economic status (deciles 8-10; 14.3%; p < 0.05) and small school size (<749 students; 14.1%; p < 0.025) were associated with a higher proportion of 'green' items. Community (19.3%) and in-house (25.9%) food providers provided a lower percentage of 'amber' items than school providers (39.3%; p < 0.001). In-house providers (64.6%) had a greater percentage of 'red' items than school providers (48.2%; p = 0.017).

Food available in schools (Years 7-13) tends to be unhealthy. A national nutrition policy could improve the school food environment, especially in schools with large populations and low socio-economic status. SO WHAT?: School demographics have been associated with menu quality but further research within these schools is needed to identify the gaps to improve equitable outcomes within school food environments.