The USDA 2010 Dietary Guidelines for Americans were released on January 31, 2011. The USDA revisits its dietary guidelines every five years and adjusts them based on the latest consensus of science and nutrition. This edition has many notable changes from the 2005 Guidelines and will ultimately have a large impact on school lunches across the country. We will devote a series of posts to dissecting the new edition and what the changes mean for you.