McDonald's Diet: Iowa Science Teacher Loses 37 Pounds in 90 Days (VIDEO)

If you're looking to lose weight, you might want to consider an all-McDonald's diet.

According to the Guardian, an Iowa science teacher lost 37 pounds in three months after consuming only products from McDonald's, a move inspired by the 2004's documentary "Super Size Me," in which a man ate only McDonalds food. The results led to horrific effects.

John Cisna, a biology teacher at Colo-Nesco High School, decided to put together his own 90-day experiment last fall, to prove a theory to three of his students. Cisna told KCCI News that he would eat at the fast food joint and not gain weight as long as he picked wisely.

"I can eat any food at McDonalds I want as long as I'm smart for the rest of the day with what I balance it out with," he told KCCI News.

Cisna told KCCI News that he consumed 2,000 calories a day. Typically a breakfast which consisted of egg-white delights and oatmeal with one-percent milk; lunch consisted of a salad and a value meal for dinner.

"This isn't something where you say 'well he went to McDonalds and he only had the salads.' No, I had the Big Macs, the quarter pounders with cheese. I had sundaes, I had ice cream cones," Cisna said.

While consuming a McDonald's only diet, Cisna, who told KCCI News that he has never exercised before, began working out for 45-minutes a day. Along with losing weight, Cisna said his cholesterol level dropped from 249 to 170 and his low-thickness lipoprotein dropped from 173 to 113.

Cisna said his students used McDonald's online nutritional information to consider what meals their teacher would consume daily, but also followed the nutritional limitations he set. Cisna also considered the recommended dietary allowances for nutrients like carbohydrates, proteins, fat calories and cholesterol.

Cisna told KCCI News, that the local McDonald's manager, was pleased with Cisna's idea and provided him with free meals. The science teacher said he disagrees with health officials who are blaming fast food joints for the raising rate in obesity, stating that health is a personal responsibility.

"We all have choices," Cisna told KCCI News. "It's our choices that make us fat, not McDonald's."

"Super Size Me" followed Morgan Spurlock as he consumed a 5,000-calorie-a-day for 30-days at the fast food joint. During the process he gained 25 pounds, suffered severe liver dysfunction and developed depression.

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