Teacher Loses 40 Pounds In 3 Months, Eating Only McDonald's?

An Iowa teacher says he lost nearly 40 pounds in three months by eating McDonald’s only. John Cisna says he and his students planned out a 2000-calorie daily diet using foods only on the McDonalds menu. He says for breakfast he would have a bowl of oatmeal or egg whites with 1% milk. For lunch, Cisna would have a salad and for dinner he would a value meal which included Big Macs and ice cream sundaes.