If we don't eat lunch, our body starts to scream out for glucose and our blood sugar levels drop. 'If we stop eating for over seven hours, the body starts to self-cannabilise,' she adds.

"For the last eight days in a row we've had food that has been produced by Pita Pit," one principal at a school cutting back says.

Dr Divya Sharma, aka DoctorBowl, has shared her "favourite" lunch recipe with her 1.7 million Instagram followers - and it's not only "quick and easy" to make.