A Growing Global Crisis
Childhood obesity is no longer a distant threat; it is a present-day global health emergency. According to the World Health Organization (WHO), the prevalence of obesity among those aged 5-19 has quadrupled since 1990, rising from just 2% to 8% in 2024.
This translates to 170 million young people worldwide, with 70 million being children aged 5-9 and 100 million being adolescents. The issue is particularly acute in India, which now has one of the highest numbers of children affected by overweight and obesity. A 2026 report noted that in 2025, over 41 million children in India aged 5-19 were either overweight or obese, placing the country on a concerning trajectory. This rapid increase is driven by what the WHO calls a 'changed society'—environments where unhealthy foods are readily available and opportunities for physical activity are shrinking.
Introducing the First WHO Guidelines
In response to this escalating crisis, the WHO launched its first-ever dedicated guidelines for the management of obesity in children and adolescents in October 2026. Describing obesity as a chronic, relapsing disease, the guidelines provide a global framework for healthcare systems, policymakers, and families. The core message is a shift away from focusing solely on weight loss. Instead, the focus is on a holistic approach that prioritises overall health, mental well-being, and sustainable lifestyle changes. Dr. Luz Maria De Regil, a director at the WHO, emphasized that the foundation of care is not medicine or surgery, but comprehensive support that enables healthy eating, physical activity, and lasting behaviour change.
What the Guidelines Recommend
The WHO's recommendations are firmly rooted in lifestyle interventions, especially for younger children. For all children and adolescents, the guidelines strongly advocate for structured programmes focused on diet, physical activity, and behaviour modification. For children under the age of 10, the WHO explicitly advises against the use of weight-loss medications, bariatric surgery, or other weight-loss devices. For adolescents aged 10 to 19, these more intensive medical interventions are only to be considered as a last resort, after a supervised, multimodal lifestyle programme has proven unsuccessful, and even then, under strict conditions. The guidelines also highlight the importance of addressing the mental health impacts of obesity, such as stigma, bullying, anxiety, and depression, urging healthcare workers to manage physical and mental health together.
Beyond the Family: A Systemic Problem
While family-centred care is crucial, the WHO is clear that individual efforts alone cannot reverse the obesity epidemic. The guidelines call on governments and societies to create more supportive environments. This includes implementing policies that make healthy diets more affordable and accessible, regulating the marketing of unhealthy foods and sugary drinks to children, and redesigning urban spaces to promote physical activity. In India, where a 2026 report found that nearly 74% of adolescents do not meet recommended activity levels, such systemic changes are critical. The problem is societal, the WHO states, and therefore demands a population-based, multisectoral approach.
