More than 90-percent of school breakfasts feature processed meat.
Many contain more sodium, fat and cholesterol than young children should have in an entire day.
Experts at the Physicians Committee for Responsible Medicine studied breakfast menus from 30 school districts across the country.
They found one in three offered low-fat options, like oatmeal.
The worst meal was the ham, egg and cheese biscuit, which contained 1,800 milligrams of sodium.
Other unhealthy options included cheesy scrambled eggs, a sausage, egg and cheese whole grain sandwich, maple-flavored pork pancake wraps and donuts.
