work of seven or more expert nutrient group panels and two overarching subcommittees (Figure A-1). The process described below, used to develop this report, is expected to be used for subsequent reports.
The Panel on Micronutrients, composed of experts on those nutrients, was appointed in January 1999. It was responsible to (1) review the scientific literature concerning micronutrients and selected components of foods that may influence the bioavailability of these nutrients; (2) develop dietary reference levels of intake for the selected dietary micronutrients that are compatible with good nutrition throughout the lifespan and that may decrease risk of developmental abnormalities and chronic disease; (3) address the safety of high intakes of these dietary micronutrients and, when appropriate, determine tolerable upper intake limits; and (4) identify a research agenda to provide a basis for public policy decisions related to recommended intakes and ways to achieve those intakes. The panel was charged with analyzing the literature, evaluating possible criteria or indicators of adequacy, and providing substantive rationales for their choices of each criterion. Using the criterion