Federal guidance on nutrition and diet is intended to reflect the state of the science and deliver the most reliable recommendations possible according to the best available evidence. This guidance, updated and presented every 5 years in the Dietary Guidelines for Americans (DGA), serves as the basis for all federal nutrition policies and nutrition assistance programs, as well as nutrition education programs. Despite the use of the guidelines over the past 30 years, recent challenges prompted Congress to question the process by which food and nutrition guidance is developed. This report assesses the process used to develop the guidelines; it does not evaluate the substance or use of the guidelines. As part of an overall, comprehensive review of the process to update the DGA, this first report seeks to discover how the advisory committee selection process can be improved to provide more transparency, eliminate bias, and include committee members with a range of viewpoints for the purpose of informing the 2020 cycle.

Like many other agencies of the federal government, the Food and Drug Administration (FDA) relies extensively on external advisory committees for independent scientific and technical advice. Recognizing that the existing advisory committee system is essentially sound, this volume recommends ways of enhancing the use of these committees in the evaluation of drugs, biological materials, and medical devices; strengthening the agency's management of the system; and increasing the accountability of the system to the public. In doing so, it examines and makes recommendations on such issues as the recruitment of committee members, the FDA's management of financial conflict of interest and intellectual bias among members, and the operations and management of the advisory committee system.