Other countries are streets ahead of the UK on childhood obesity. Here’s what they’re doing differently | Devi Sridhar

There could be 227 million obese children worldwide by 2040. But as South Korea and Denmark have shown, it is possible to tackle this crisis Devi Sridhar is chair of global public health at the University of Edinburgh Despite health and fitness being more in vogue than ever, childhood obesity rates continue to rise. A new report from the World Obesity Federation warns that by 2040, the number of five- to 19-year-olds globally who are obese could increase from 180 million to 227 million. This is defined as a BMI of 30 or above – and is a risk factor for type 2 diabetes, hypertension, cardiovascular disease and a number of other serious health conditions. These trends are also clear in the UK, where overweight and obesity rates continue to increase in children. In England, the National Child Measurement Programme (which takes height and weight data in year 6 for 94.1% of all eligible children) for 2024-25 found that 36.2% of children aged 10-11 had a high BMI (more than 25), with children in the most deprived areas twice as likely to be obese, and projections indicating that in some areas, the majority of children would be at an unhealthy weight by 2035. The UK as a whole has twice