Super Size Me is a 2004 American documentary film

Documentary film

Documentary films constitute a broad category of nonfictional motion pictures intended to document some aspect of reality, primarily for the purposes of instruction or maintaining a historical record...

 directed by and starring Morgan Spurlock

Morgan Spurlock

Morgan Valentine Spurlock is an American documentary filmmaker, humorist, television producer, screenwriter and journalist best known for the documentary film Super Size Me...

, an American independent filmmaker. Spurlock's film follows a 30-day period from February 1 to March 2, 2003 during which he eats only McDonald's

McDonald's

McDonald's Corporation is the world's largest chain of hamburger fast food restaurants, serving around 64 million customers daily in 119 countries. Headquartered in the United States, the company began in 1940 as a barbecue restaurant operated by the eponymous Richard and Maurice McDonald; in 1948...

 food. The film documents this lifestyle's drastic effect on Spurlock's physical and psychological

Psychology

Psychology is the study of the mind and behavior. Its immediate goal is to understand individuals and groups by both establishing general principles and researching specific cases. For many, the ultimate goal of psychology is to benefit society...

 well-being, and explores the fast food industry's corporate influence, including how it encourages poor nutrition

Nutrition

Nutrition is the provision, to cells and organisms, of the materials necessary to support life. Many common health problems can be prevented or alleviated with a healthy diet....

 for its own profit.

Spurlock dined at McDonald's restaurants three times per day, eating every item on the chain's menu.