Head teachers urged to ban packed lunches
12 July 2013 Last updated at 13:35 BST
A few years ago, school meals were criticised for not being healthy enough - now packed lunches are under attack.
A report commissioned by the government says that too often they are filled with crisps and chocolates and head teachers are being urged to ban them so children can get a healthy school meal instead.
Gillian Hargreaves reports.