http://articles.mercola.com/sites/articles/archive/2006/08/17/super-sizing-larger-portions-all-in-the-eye-of-the-beholder.aspxA new study offers evidence that how much people choose to eat is in part determined by cues taken from their surroundings. The concept is called "unit bias," the tendency to think of a single unit of food, such as a bottle, can, or plateful, as an appropriateenCommunityServer 2008.5 SP1 (Build: 31106.3070)