School meals for millions of children will be healthier under obesity-fighting U.S. Department of Agriculture (USDA) standards unveiled on Wednesday that double the fruits and vegetables in cafeteria lunches – but won’t pull French fries from the menu.

In the first major changes to school breakfasts and lunches in more than 15 years, the new USDA guidelines will affect nearly 32 million children who eat at school. They will cost the federal government about $3.2 billion to implement over the next five years.