Super Size Me documents filmmaker Morgan Spurlock's 30-day experiment where he ate only food from McDonald's restaurants three times a day. Over the month, Spurlock gained 24.5 pounds and his cholesterol levels increased. The film highlights America's obesity epidemic and critiques the fast food industry for encouraging unhealthy eating habits. It calls on fast food chains to offer healthier options and limit advertising targeting children to help address obesity rates in the U.S.