After hearing the McDonalds Corporation defense against a lawsuit filed by two overweight adolescents who claimed their condition was caused by eating at the fast food establishment, filmmaker Morgan Spurlock decided to conduct a similar experiment on himself showing the riveting and often revolting eating habits of American and the fast food industry.

After being checked out by a team of doctors and nutritionists to document his current state of health which was considered above average, Morgan decided to set out on an all-McDonald's diet. For 30-days his intake consisted of eating nothing but what McDonald's offered for breakfast, lunch and dinner. He was to sample every single menu item throughout the month.

Over time Morgan's weight dramatically increases, his health weakens and he begins to show signs of depression. Morgan at 6 foot 2 inches, 185lbs, and 11% body fat was fit and lean at the start the month. After...