There are few studies which report on the long-term effects of interventions to control weight in children. The Cochrane Review on interventions for preventing obesity in children concluded that there was a need for a much greater number of well-designed studies, which examine a range of interventions for childhood obesity.⁷ It has been identified that strategies which reduce sedentary behaviour and increase physical activity seem useful. In addition, behavioural interventions appear more successful when parents are included.