This is a report of the National Academies' National Research Council, Committee on National Statistics. It is available here by permission. It may also be obtained through the National Research Council's website. An earlier, prepublication version was made available in May 2010, but should no longer be used.

The third School Nutrition Dietary Assessment Study provides the most comprehensive measurement available of: (a) the nutritional quality of reimbursable meals served in the National School Lunch and Breakfast programs, (b) the nutritional quality of the breakfasts and lunches consumed by children who participate in these programs, and (c) student participation rates. The study data enable analyses of school meal policies that were not previously possible. This report describes exploratory work to develop a simulation model to predict the potential implications of changes that may be coming in policies and practices related to school meals and school food environments.