More than 22,000 children will leave primary school dangerously obese this year.
The number of 10 and 11-year-olds classed as severely obese, the most overweight scale, in the final year of primary school is also nearly double that of those in reception.
More than 22,000 out of 556,000 of children in Year 6 are classed as severely obese, a significant increase on the 15,000 four and five-year-olds in the category.
The Local Government Association (LGA), which obtained the figures, said this showed children were gaining weight at a drastic rate as they went through school.
The LGA, which represents 370 councils in England and Wales, warned that the severe child obesity rates were contributing to a “multi-billion-pound ill-health time bomb”.
Severe obesity puts people at serious health risks, including diabetes, heart disease, stroke and cancer. Severe obesity can also shorten a person’s life by 10 years – an equivalent loss to the effects of lifelong smoking. In adults, a BMI of 40 or above means a person is severely obese, at least 60 per cent higher than the upper healthy weight BMI limit of 24.9.
The first data of its kind for 2016-17, obtained by the LGA and supplied by the National Child Measurement Programme (NCMP), show that a total of 22,646 out of 556,452 10 and 11-year-olds (4.1 per cent) are classed as severely obese. For children aged four and five, reception class age, the figure is 14,787 out of 629,359 in total (2.35 per cent).
Severe obesity rates are highest in children living in the most deprived towns and cities, and those from BME groups, which the LGA suggested shows a need for more targeted interventions.
Despite budget reductions, it said councils were spending more on running effective prevention schemes to help children stay healthy, which is key to tackling the child obesity crisis and reducing future costs to hospital, health and social care services.
But it added that this work, including the ability of councils to provide weight management services for children and adults, is being hampered by a £600 million reduction in councils’ public health budgets by central government between 2015-16 and 2019-20.
The LGA is calling for reductions in public health grants to be reversed by the Government and for further reforms to tackle childhood obesity.
This includes councils having a say in how and where the soft drinks levy is spent, better labelling on food and drink products, and for councils to be given powers to ban junk food advertising near schools.
Councillor Izzi Seccombe, chairman of the LGA’s Community Wellbeing Board, said the figures represented a “further worrying wake-up call”.
“Unless we tackle this obesity crisis, today’s obese children will become tomorrow’s obese adults whose years of healthy life will be shortened by a whole host of health problems including diabetes, cancer and heart disease,” she said. “Cuts to councils’ public health grants are having a significant impact on the many prevention and early intervention services carried out by councils to combat child obesity.”
“However, we have always been very clear that this is the not the final word on obesity, and we have not ruled out further action if the right results are not seen.”