The Sunlight Foundation tracks the influence of major political players and recent changes in federal food policy that are shaped by long lobbying campaigns. Food and media companies oppose voluntary guidelines on marketing to children that are intended to combat childhood obesity.
Here is some recent reporting by the Sunlight Foundation and news coverage on the issue:
Mark Bittman cites recent reporting by the Sunlight Foundation.
Marion Nestle cites Sunlight Foundation reporting on food lobbying.