The film documents this lifestyle 's drastic effects on Spurlock 's physical and psychological well-being, and explores the fast food industry 's corporate influence, including how it encourages poor nutrition for its own profit.
The reason for Spurlock 's investigation was the increasing spread of obesity throughout U.S. society, which the Surgeon General has declared "epidemic," and the corresponding lawsuit brought against McDonald 's on behalf of two overweight girls, who, it was alleged, became obese as a result of eating McDonald 's food [Pelman v. McDonald 's Corp., 237 F. Supp. 2d 512].[3] Spurlock points out that although the lawsuit against McDonald 's failed (and subsequently many state legislatures have legislated against product liability actions against producers and distributors of "fast food"), much of the same criticism leveled against the tobacco companies applies to fast food franchises whose product is both physiologically addictive and physically harmful.
The movie ends with a rhetorical question, "Who do you want to see go first, you or them?" This is accompanied by a cartoon tombstone, which reads "Ronald McDonald (1954-2012)," which originally appeared in The Economist in an article addressing the ethics of marketing toward children.[10]
A short epilogue was added to the DVD describing McDonald 's discontinuation of the Super Size option six weeks after the movie 's premiere, as well as its recent emphasis on healthier menu items such as salads, and the release of the new adult happy meal. However, it is shown that the salads can contain even more calories than hamburgers, if the customer adds liberal amounts of cheese and dressing prior to consumption. McDonald 's claimed that these changes had nothing to do with the film.
Spurlock claimed he was trying to imitate what an average