A 279-pound science teacher in Iowa recently let himself be the subject of his student’s experimentation. Does McDonald’s make you fat? The Colo-Nesco High School students decided to find out using their teacher John Cisna as their guinea pig.

Mcdonalds Burgers

Unlike the infamous documentary Supersize Me, Cisna and his students planned his exclusive McDonald’s diet according to 3 simple rules that we already know are important elements of a healthy lifestyle…

  1. He would only consume 2,000 calories a day.
  2. He would mix and match menu items in order to follow the FDA’s daily nutritional guidelines.
  3. He would exercise.

If he followed these rules and still got fatter, it would be McDonald’s fault.

The three students involved in the project took responsibility for the first two rules, planning Cisna’s daily meals in order to keep the total to fewer than 2,000 calories and maintain a balance of nutrients. Then the exercise, rule #3, was up to him.

He started only eating at McDonald’s and walking for 45 minutes every day.

Together the students and teacher tracked his intake and his weight, and after 90 days he’d lost 37 pounds and his cholesterol had dropped from 279 to 170.

John Cisna's McDonald's Diet

His conclusion is simple and blunt like you’d expect a Middle-American high school science teacher to be…

“It’s our choices that make us fat, not McDonald’s.”

Not everyone is please by this sort of unsubtle blaming, but he stands by it…

The local McDonald’s manager was not surprised at the results. He had been sure enough beforehand that the experiment would swing his way that he gave Cisna all his meals for free.