New federal guidelines on school lunches are changing how students eat during the school day.

Under the Dietary Guidelines for American's, school lunches are now required to have age-aligned calorie maximums, capping the amount of calories high school students eat to around 850. Tri-Valley school district has reworked its lunch menu to accommodate the new rules but it's coming at a cost to the school.

"While we support the idea of feeding students healthy food I think there...