Policies and interventions to create healthy school food environments: WHO guideline

🔍💡 School nutrition: concrete WHO recommendations to rethink meals, nutritional standards, and "nudges" in support of students' health, equity, and children's rights. 

🥦🏫 Transforming the canteen and sales points around the school into levers for reducing inequalities and preventing childhood obesity, with an operational framework from the WHO that is adapted to local contexts.

🔍➕ Pertinence terrain 

This guide provides a framework that can be directly mobilised by local authority leaders, rectorates, ARS, NGOs, and establishment management to design or strengthen coherent school food policies that are evidence-based and aligned with other public policies (taxation, marketing, social protection). It also assists local project teams (CLS coordination, city contracts, CPEF, associations, social centres) in arguing, prioritising, and securing their choices in the face of budgetary trade-offs and economic pressures. Finally, it equips stakeholders to integrate the equity-human rights dimension into systems (school catering, solidarity canteens, snacks, vending machines), which is central in popular and rural areas.

Source :    ✍️ Policies and interventions to create healthy school food environments: WHO guideline - Genève 2025

   📜🔗LIEN 

1. Analytical summary

Context, challenges and target audiences

The document starts from the persistent global burden of all forms of malnutrition among children (stunting, underweight, micronutrient deficiencies, overweight, obesity and diet‑related noncommunicable diseases) in an environment marked by high availability and marketing of ultra‑processed foods. Schools are identified as key settings: most children spend a large part of their day there, which makes them a structuring lever to act on dietary behaviours, equity and human capital. The guideline builds on existing frameworks (Nutrition‑Friendly Schools Initiative, health‑promoting schools, WHO standards on water and sanitation, guidelines on marketing and fiscal policies), but focuses on the school food environment (availability, standards, nudges, prices, marketing). It targets a wide range of actors: national and local policy‑makers, programme managers, school leaders, teachers, school health professionals, NGOs and researchers.

Operational contributions for practitioners

The guideline formulates a good‑practice statement (“foods and beverages provided, served, sold or consumed at school should be safe and contribute to healthy diets”) and three recommendations: use school food provision, set mandatory nutrition standards, and implement nudging interventions, preferably in combination. It synthesises a systematic review (96 studies) and a contextual evidence review (costs, feasibility, acceptability, equity) to inform decisions, making explicit the strength and certainty of recommendations through the GRADE approach. WHO also proposes an implementation logic: adaptation to nutritional and sociocultural context, alignment with other food policies, multisectoral governance, monitoring and updating mechanisms. For local actors, the document provides benchmarks to argue choices (free/universal meals, nutritional criteria, choice architecture) and to orient research and evaluation of school‑based programmes.

2. Key points of the document 

School food provision increases consumption of foods that support health
School meal, fruit and vegetable or milk schemes show, in most studies, an increase in consumption of foods “that contribute to a healthy diet”, with variable but generally favourable effects and mixed effects on total energy intake and short‑term anthropometric indicators. (pp. x, 13–21, 23–28)

Nutrition standards improve offer and intake, with still limited evidence
Nutrition standards or rules for foods served or sold in and around schools increase the availability and consumption of healthier options and reduce some intakes of less healthy foods, but data remain heterogeneous and of low certainty for several outcomes, including sales and BMI. (pp. x–xi, 21–29)

Nudges are promising but must remain complementary
Nudging interventions (presentation, placement, portion size, nutrition information) show mostly favourable effects on selection, purchasing and, in some cases, consumption of healthy foods, with few identified adverse effects, but low‑to‑moderate certainty and effectiveness that depends on the availability of healthy options. (pp. xi, 21–29, 35–36)

Equity, human rights and acceptability are central to decision‑making
The guideline foregrounds the right to food and health and the role of school food policies in reducing inequalities (access to meals, menu quality, narrowing socio‑economic gaps), while highlighting common tensions around acceptability (parents, pupils, staff, caterers) and stressing tools to limit stigma (universal meals, cashless systems, pre‑order). (pp. x–xii, 21–22, 31–36)

A systemic, governed and aligned approach is essential
WHO insists on combining school‑based interventions with other food policies (taxation, marketing, labelling, public procurement), building multisectoral governance and monitoring systems, and embedding actions in the WHO–UNESCO “every school a health‑promoting school” framework. (pp. x–xv, 31–37, 39–41, 73)

3. Actionable leads for local actors (4–5 leads)

Build a local project around three levers: provision, standards, nudges
Based on WHO recommendations, design a local plan combining: healthy school meals/snacks (including targeted or universal schemes), gradual adoption of nutrition standards for school catering and food outlets, and simple nudging interventions (healthier default options, prominent display of fruits/legumes, menu redesign). (pp. 23–29, 31–36)

Use nutrition standards as the contractual foundation with caterers
Translate standards into specifications and contractual clauses: allowed/forbidden food groups, frequencies, cooking methods, portion sizes, targets for reducing salt, free sugars and saturated fat, aligned with national dietary guidelines. (pp. xiii–xiv, 33–36, 72)

Embed equity and anti‑stigma measures in scheme design
Design free or subsidised meal schemes with features that conceal socio‑economic differences (anonymous cashless systems, pre‑ordering, identical menus for all) and prioritise the most vulnerable schools/areas when rolling out interventions. (pp. xiii, 21–22, 31–35)

Anchor action in multi‑actor and multisectoral governance
Set up or strengthen local working groups bringing together local authorities, education, public health, catering providers, parents and pupils to co‑develop rules, plan implementation, track indicators (consumption, waste, satisfaction, equity) and adjust actions. (pp. 7–8, 31–37, 41)

Align school‑based actions with other local food policies
Ensure coherence between school interventions and wider initiatives on sustainable public procurement, local producers, advertising regulation, local sugary‑drink taxation and neighbourhood‑based health promotion (community centres, youth programmes, family‑focused actions). (pp. 31–37, 49–52)