However, it is already late for many school districts to adjust items they purchase, said Diane Pratt-Heavner, the director of media relations for the School Nutrition Association. Currently, the dietary guidelines recommend low and non-fat dairy, but the new ones may include whole fat dairy, the source said. The guidelines are the basis for school nutrition standards, which are set by the USDA. The current dietary guidelines recommend limiting saturated fat to less than 10% of total calories consumed daily, and do not address ultra-processed food. School districts may struggle to meet the recommendations of the new dietary guidelines by the time school starts.