WHO releases first global guidelines for managing childhood obesity
- The World Health Organization (WHO) released on Wednesday (7), its first global guidelines for managing obesity in children and adolescents, addressing a prevalence rate that has quadrupled since...
- The new WHO framework establishes distinct protocols based on age and severity.
- For adolescents aged 10 to 19, the guidelines introduce the possibility of medical intervention.
The World Health Organization (WHO) released on Wednesday (7), its first global guidelines for managing obesity in children and adolescents, addressing a prevalence rate that has quadrupled since 1990. Current data indicates that 8% of children and adolescents aged 5 to 19 years are now obese, up from 2% three decades ago. This totals 170 million individuals worldwide, split between 70 million children aged 5 to 9 and 100 million adolescents aged 10 to 19.
Guidelines for Treatment by Age Group
The new WHO framework establishes distinct protocols based on age and severity. For children up to age 9, the organization explicitly advises against pharmacological treatments, bariatric surgery, or weight-loss devices. Instead, the WHO recommends structured interventions focused on diet, physical activity, and behavioral modifications, either as individual plans or multimodal programs. According to the WHO, the foundation of obesity care for children and adolescents is neither medication nor surgery. Laurence Grummer-Strawn, head of the Nutrition and Food Safety Unit at the WHO, stated that the current guidelines are dedicated to existing cases of obesity. The organization also conditionally recommends digital health interventions, provided they are supervised by parents or caregivers.
For adolescents aged 10 to 19, the guidelines introduce the possibility of medical intervention. Medications—including GLP-1 receptor agonists, often referred to as weight-loss pens—and bariatric surgery may be considered for this older group. However, these clinical options are restricted to cases where supervised, multimodal lifestyle programs have failed to achieve desired outcomes. The WHO specifies that bariatric surgery is reserved for adolescents with severe obesity and must be performed under strict conditions.
Medical experts note this changes the clinical approach. The change of lifestyle continues to be the base of the treatment, but now the WHO opens the possibility for the use of medications that already exist and are duly approved for this age group in specific cases,
Maria Edna de Melo, coordinator of the Advocacy Department at the Brazilian Association for the Study of Obesity and Metabolic Syndrome (Abeso), said.
Mental Health and Chronic Disease Risks
The WHO categorizes obesity as a chronic, recurring disease that carries long-term health risks even during childhood. These include an increased likelihood of developing type 2 diabetes and cardiovascular disease. Beyond physical health, the organization emphasizes the social and psychological toll, noting that children and adolescents with obesity are frequently subjected to stigma, discrimination, and bullying.
The guidelines also highlight the intersection of mental health and obesity. Factors such as anxiety, depression, low self-esteem, and emotional dysregulation are identified as contributors to sedentary behavior and poor dietary habits. The WHO advises that healthcare professionals should address physical and mental health needs simultaneously, utilizing strategies that are inclusive, developmentally appropriate, and family-centered.
WHO Advocates for Systemic Changes to Prevent Obesity
The WHO acknowledges that clinical treatment alone is insufficient to reverse the rising trend of obesity. In its guidance, the organization advocates for broader systemic changes to make healthy diets and physical activity more accessible and affordable. These recommendations include integrating the school environment into obesity prevention, implementing regulations on the marketing of unhealthy food and beverages, and utilizing tax measures on products that contribute to weight gain.
These environmental interventions are intended to support long-term health outcomes alongside clinical care. While the guidelines provide a framework for medical professionals, the organization maintains that success relies on a combination of individual care and structural improvements in urban planning, transportation, and social protection. The WHO continues to monitor ongoing studies regarding the long-term use and maintenance of GLP-1 medications in younger populations, as questions regarding duration of use and post-weight-loss dosage management remain subject to further research.