Former science teacher claims that he lost 60 pounds on a six-month regimen of McDonald's food and daily walks and now he's being paid to be the brand ambassador.

Cisna has already spoken at 90 schools on invitation. He has included a 20-minute documentary about the 54 different meal choices available on a McDonald's menu and how the choices of those meals can make a difference in diet plans.
Spokeswoman Lisa McComb said that neither Cisna not McDonald's advocates eating every single meal every day for an extended period of time from one establishment only.
"While the decision on how schools choose to educate and inform their students is up to them, we support John's desire as a teacher to provide students with facts to make informed choices," she said.
Cisna came up with the idea for the McDonald’s diet along with his high school class, without help or endorsement from McDonald’s. He maintained a strict caloric intake of only McDonald’s meals and walking everyday. He lost 37 pounds in the first 90 days and wrote a book about it.
Cisna said that he wanted to counter the impression about fast food, especially McDonald’s being suicide for health.
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