GENEVA, October 8: The World Health Organization (WHO) has issued its first global guidelines addressing obesity among children and adolescents, calling for a comprehensive approach that combines healthy eating, physical activity and behavioural interventions with carefully assessed medical treatment where appropriate.
The recommendations come amid growing concern over the rising prevalence of obesity among younger populations. According to WHO Director-General Tedros Adhanom Ghebreyesus, the proportion of children and adolescents living with obesity has increased fourfold over the past 25 years, rising from 2 per cent to 8 per cent.
More than 170 million children and adolescents worldwide are now living with obesity, highlighting the scale of a public health challenge that affects not only physical health but also psychological well-being, everyday functioning and quality of life.
The new guidelines seek to help countries develop more consistent approaches to identifying and managing obesity in younger people. They emphasise that treatment should not be reduced to weight loss alone, but should aim to improve overall health and support the well-being of children and adolescents.
The recommendations also recognise that obesity is a complex condition influenced by several factors, including diet, physical activity, behaviour and the wider environment in which children grow up.
A growing global public health concern
Childhood and adolescent obesity has become an increasingly important issue for healthcare systems worldwide. Changes in dietary patterns, reduced opportunities for physical activity and wider social and environmental influences can contribute to the development of unhealthy weight gain.
Obesity during childhood can have consequences that extend into adulthood. Children affected by the condition may face increased risks of developing metabolic and other health problems, while some also experience stigma, discrimination or difficulties with their mental and emotional well-being.
The rising prevalence has increased pressure on governments, healthcare providers, schools and families to develop effective prevention and treatment strategies.
However, specialists face a challenge in ensuring that interventions are appropriate for a child’s age, developmental stage and individual health needs. Measures designed for adults cannot automatically be applied to children, whose nutritional requirements and physical development continue to change.
The WHO guidelines are intended to provide a framework for healthcare professionals and policymakers as they respond to these challenges. They place emphasis on structured, evidence-based care rather than relying on a single intervention or a one-size-fits-all approach.
Healthy diets and physical activity remain central
The WHO recommendations strongly support structured changes in diet, behaviour and physical activity for children and adolescents living with obesity.
Healthy eating is an important component of obesity management, but dietary interventions for younger people must also support normal growth and development. Children need adequate nutrition for their physical development, learning and everyday activities.
A balanced approach can include access to nutritious foods, appropriate portions and eating patterns that meet individual nutritional requirements. Families, schools and communities can contribute by making healthier choices easier and more accessible.
Physical activity is another essential element. Regular movement can support cardiovascular health, physical fitness, muscle and bone development, and emotional well-being.
Opportunities for activity may include sports, walking, cycling, outdoor play and other forms of movement suited to a child’s age and abilities. The availability of safe recreational spaces and supportive school environments can influence whether children are able to participate regularly.
Behavioural support can help children and families establish sustainable routines. Rather than focusing exclusively on body weight, healthcare professionals can work with families to identify practical changes that fit their circumstances.
The WHO approach also highlights the importance of avoiding blame. Obesity is a complex health condition, and effective management requires appropriate support rather than shame or discrimination.
Medical treatment may be considered when appropriate
The guidelines also address pharmacological treatment, bariatric surgery and weight-management devices, recognising that some children and adolescents may require additional medical interventions.
Such treatments are not intended to replace healthy dietary habits, physical activity or professional assessment. Their suitability depends on individual circumstances, clinical evidence, potential risks and the needs of the patient.
Medicines used for weight management require careful consideration, particularly in younger populations. Doctors must evaluate the patient’s health, age, development and any other relevant medical conditions before determining whether a treatment is appropriate.
Surgical interventions likewise involve specialised assessment and follow-up. They are not suitable for every young person living with obesity and require consideration of potential benefits, risks and long-term care needs.
The inclusion of these treatment options in the guidelines reflects the need for healthcare systems to consider the full range of evidence-based interventions. It does not mean that every child with obesity should receive medication or undergo surgery.
Instead, the recommendations encourage a structured approach in which the level and type of treatment are matched to the individual’s clinical needs.
The guidelines also underline the importance of measuring success through broader health outcomes, including improvements in physical functioning and well-being, rather than concentrating solely on changes in weight.
Families and healthcare professionals have important roles
Families can play a significant role in supporting healthier routines, but they should not be expected to manage childhood obesity without access to reliable information and appropriate healthcare services.
Parents and caregivers may need guidance on nutrition, physical activity, sleep routines and the development of healthy habits. Healthcare professionals can help families understand available options and identify realistic changes that can be maintained over time.
Regular clinical assessment can also help identify associated health concerns and determine whether additional interventions are needed.
Schools are another important part of the response. Nutritious food choices, opportunities for exercise, health education and measures to prevent bullying can contribute to a more supportive environment for children.
At the community level, access to safe public spaces and affordable healthy food can influence children’s ability to maintain healthy routines. These factors are especially relevant where families face financial constraints or have limited access to recreational facilities.
The WHO recommendations therefore have implications beyond individual consultations. Governments and health authorities may need to consider how public services, education systems and local environments can support healthier childhood development.
Preventing obesity requires broader action
Although the new guidelines focus on the management of children and adolescents already living with obesity, WHO has also stressed the importance of prevention.
Preventive measures can help reduce the risk of unhealthy weight gain before it develops into a condition requiring specialised treatment. These efforts may include improving access to nutritious foods, encouraging physical activity and creating environments that support healthy choices.
The affordability of healthy food is an important consideration. Families cannot consistently make healthier dietary choices if nutritious options are inaccessible or unaffordable.
Similarly, recommendations to exercise may have limited impact where children lack safe places to play, walk or participate in sports.
Public health strategies therefore need to consider the social and economic circumstances that influence children’s daily lives. Awareness campaigns can provide useful information, but lasting improvements may require coordinated action across healthcare, education and community services.
Prevention and treatment should also work together. Children who already have obesity need appropriate care, while wider policies can help reduce the number of children developing the condition in the future.
Reducing stigma and protecting children’s well being
Obesity management must also address the emotional and social challenges that some children experience.
Negative attitudes towards body weight can expose young people to teasing, bullying and discrimination. These experiences can affect self esteem and discourage them from participating in school, sports or social activities.
Healthcare professionals and families can help by using respectful language and focusing on health, functioning and well being rather than appearance.
A supportive approach can encourage children to engage with treatment without feeling blamed for their condition. It can also help families understand that sustainable improvements may require time and professional guidance.
The WHO guidelines’ emphasis on broader well being is significant because successful care involves more than changes on a weighing scale. Improvements in health and daily functioning are also important considerations when assessing treatment.
Challenges for countries implementing the recommendations
The publication of global guidelines is an important step, but implementation will depend on the resources and capabilities of individual healthcare systems.
Countries may face shortages of trained healthcare professionals, limited access to specialist services and inequalities in the availability of nutritional counselling or medical treatment.
Some health systems may also need to strengthen the integration of childhood obesity management into routine services. This can involve training healthcare workers, developing referral pathways and ensuring that children who need specialist assessment can receive it.
Policymakers will need to consider how the recommendations can be adapted to local circumstances without compromising the principles of safe, evidence-based care.
For lower-income communities, prevention efforts may be particularly dependent on improving access to nutritious foods and affordable opportunities for physical activity.
Monitoring and evaluation will also be important. Health authorities need reliable information to understand the prevalence of childhood obesity, assess access to services and evaluate whether interventions are improving health outcomes.
The guidelines provide a common international framework, but their impact will depend on how effectively countries translate recommendations into practical programmes.
A long-term commitment to children’s health
The WHO’s new guidelines mark an important development in the global response to childhood and adolescent obesity. By combining lifestyle interventions with guidance on medical treatment, they recognise the need for a comprehensive approach tailored to the individual.
The recommendations also reinforce the importance of prevention, early support and environments that make healthy choices more accessible.
For families, the message is that sustainable routines and professional guidance are more useful than extreme diets or unverified weight-loss methods. For healthcare providers, the priority is to assess each child carefully and provide treatment appropriate to their age and health needs.
For governments, the challenge extends to ensuring that nutritious food, safe recreational spaces and suitable healthcare services are available to children across different communities.
With more than 170 million children and adolescents worldwide living with obesity, the issue represents a substantial public health concern. The WHO guidelines offer countries a framework for responding, but meaningful progress will require sustained investment, effective implementation and cooperation between healthcare services, schools, families and communities.
The long-term objective is to help children grow and develop in healthier environments while ensuring that those who need treatment receive appropriate, evidence-based care.