Parents should not expect schools to police children's eating and exercise, or toilet train pupils, England's chief inspector of education will say later.
Ofsted chief Amanda Spielman will argue that the answer to the obesity crisis lies in the home, and that parents should not "abdicate responsibility".
Neither can schools be a "panacea" for knife crime or child neglect, she will add in her second annual report.
Two studies have this year queried the benefit of school anti-obesity schemes.
In February, the British Medical Journal reported…