In the tradition of pre-modern pharmacists who would test remedies on their own body, Morgan Spurlock decides to eat at McDonalds three times a day for a month and let a battery of doctors keep track of how his body would react to such a diet. I knew that McDonald’s was not good for you:  A nutritionist warned me 5 years ago that one should never east fast food although it tastes often so good. But the film documents just how bad fast food is and why it is a significant contributor to the obesity epidemic that is striking the United States.  After 30 days on a McDonald diet, Spurlock gained 15% body weight and his organs were showing clear signs of sickness.  The doctors who are monitoring his health during the 30-day period counsel him to immediately stop the experiment. The movie is a bit slow, but anyone with children should see this film.