This Teacher LOST WEIGHT on the ALL McDonald’s Diet

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.

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9 responses to “This Teacher LOST WEIGHT on the ALL McDonald’s Diet”

  1. Troy says:

    If you watch “Supersize Me” closely you’ll notice that he is eating between meals, choosing the least healthy items and pretty much always having dessert. Morgan Spurlock is not a documentarian, he’s a con man with an agenda. Michael Moore but smart.

  2. Brendt Wayne Waters says:

    I used to think that Morgan Spurlock was the next P T Barnum, as he actually convinced people to give him money to tell them the obscenely obvious. (I was looking forward to his next documentary about how jumping in a pool can make you wet.)Now we find out that he wasn’t even right.

  3. Chris says:

    There are more crucial health indicators than weight and cholesterol.Blood pressure, blood sugar, etc.This is aside from how educated and accessible our “choices” of food can be. Let’s just LIVE healthy, not just eat healthy.

  4. Slayerwulfe (@slayerwulfe) says:

    he’s still fat, his problem has not been resolved. his wallet’s been trimmed though. you can or may buy turkey,bread etc. at the local food seller of your choice cheaper. a science teacher in Iowa ! i’m impressed ? more than if he was economics. slayerwulfe

  5. Elaine says:

    The best part about that story was the last sentence.

  6. Alex Tucker says:

    It appears that they proved that following the two rules of weight loss (limiting calories, exercising) will lead to weight loss for a person who was obviously not previously following these rules.While upholding to these rules with someone else picking out your meals and with a group of people watching for the outcome, is possible even eating exclusively at McDonald’s, good luck maintaining this on your own over an extended period of time eating exclusively at McDonald’s.

  7. Troy says:

    Just below the video. “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.”

  8. CarolJ says:

    I would be more impressed if I knew his height, and BMI after the time period, plus if I were able to see the menu he chose (or his students chose for him!) Did he have to remove “the lid,” (top of bun); not have salad dressing, etc., etc.,

  9. jj says:

    heavy on* sorry

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