HEALTHY food reforms were “blown up” by Brexit and then pushed out by Theresa May, Jamie Oliver has said.

The celebrity chef called on the Government to take a “sterner” approach to tackling childhood obesity and called for a ban on TV junk food advertising to be extended to 9pm.

Oliver said he had been getting his “hands dirty” by trying to change eating habits in the most unhealthy parts of the country.

He gave evidence alongside Hugh Fearnley-Whittingstall to MPs on the Health and Social Care Committee yesterday.

Oliver has previously faced criticism over comments he made about families eating chips and cheese out of Styrofoam containers in front of a large television.

Asked about the remarks, he told BBC Radio 4’s Today programme: “I’ve learnt a lot in 15 years and when I talk to a lot of people I have tried very, very hard to get my hands dirty, work in the most unhealthy parts of the towns.”

Oliver said:”What we need is an environmental change where everyone does their bit, civic, government, business, the home.

“I worked with Mr Cameron within his group to formulate chapter one. Mrs May took over, they pushed it out.”