The World Health Organization has issued its first global clinical guidance for children and adolescents living with obesity, placing structured support for eating, activity and behaviour at the centre of care. The recommendations also draw clear age-based boundaries around medicines and surgery, while allowing carefully limited options for some teenagers.
The guidance addresses a substantial and growing health challenge. WHO estimates that 170 million people aged five to 19 were living with obesity in 2024: 70 million children aged five to nine and 100 million adolescents aged 10 to 19. Across this age group, prevalence quadrupled from 2 per cent in 1990 to 8 per cent in 2024.
Support is the foundation of care
For children and adolescents with obesity, WHO strongly recommends structured interventions combining dietary support, physical activity and behaviour change. These can be delivered individually or brought together in a wider programme. Digital health interventions are recommended conditionally, with parent or caregiver supervision.
The approach is not framed as a short-term weight-loss campaign. The guidance says care should be person-centred, suitable for a child’s age and responsive to the needs of each child and family. It calls for long-term follow-up and continuity, and says management should aim to improve health, functioning and wellbeing rather than focus on weight alone.
That distinction matters in childhood and adolescence, when physical development, family circumstances and emotional wellbeing all shape care. WHO also highlights stigma, discrimination and bullying as experiences some young people face. Mental health should be addressed alongside obesity, using inclusive, developmentally appropriate approaches that engage families. Anxiety, depression, low self-esteem and emotional difficulties can be connected with eating behaviour, activity and social withdrawal, the guidance notes; these should not be treated as reasons to blame a child.
Different limits for children and teenagers
For children aged up to nine, WHO does not recommend weight-loss medicines, bariatric surgery or weight-loss devices. For adolescents aged 10 to 19, approved medicines may be considered only if a supervised, multi-part lifestyle programme has not achieved the desired results. Surgery may be considered for adolescents with severe obesity, but only under strict conditions.
These are qualified recommendations, not a blanket endorsement of medication or an instruction that every teenager should receive it. The guidance’s emphasis on supervised care and long-term follow-up remains important when additional treatment is considered. Individual treatment decisions require clinical assessment and should not be inferred from age alone. A child’s wider health, wellbeing and continuing support remain part of the approach.
The sequencing is also important: comprehensive support remains the foundation, including when additional treatment is considered. WHO describes medicine or surgery as not replacing access to healthy eating, physical activity and sustainable behaviour change. The recommendations are intended for health systems and health workers, rather than as a self-treatment plan for families.
Care cannot carry the whole response
Clinical services alone cannot reverse rising obesity, WHO says. Its wider call is for healthy diets and physical activity to become more accessible and affordable, supported by action beyond healthcare, including education, urban planning, transport and social protection. Such measures address the conditions around children’s daily lives rather than placing responsibility solely on them or their families.
The new guidance extends a life-course approach that includes WHO recommendations for adults, linking care from childhood through adolescence and into adulthood. Its practical effect will depend on how countries adapt recommendations to their health services and make sustained support available. For families, the central message is measured: effective care is possible, but it should be compassionate, tailored and based on continuing support, with medicines or surgery reserved for specific circumstances.
