Schools in England will be limited to serving no more than two portions of fried food a week and at least one portion of vegetables a day under new regulations.
Coming into force in January 2015, the regulations will be mandatory for all local authority and free schools.
They include limiting the size of fruit juice servings to 150ml and encouraging water consumption, providing at least three different fruits and vegetables a week, and restricting the provision foods that include pastry to no more than twice a week.
The new school food regulations are designed to promote healthy eating. They will replace regulations introduced after Jamie Oliver's campaign, which were considered to expensive to enforce.