The Dietary Guidelines for Americans (DGA) aim to prevent chronic disease, ensure nutritional sufficiency for all Americans, and accommodate gender, age, and metabolic health. The process to establish the advisory committee for the DGA and the development of the guidelines is complex. This study assessed how the committee selection process can be improved to provide more transparency, eliminate bias, and include a range of viewpoints. It also evaluated the compilation and utilization of the Nutrition Evidence Library (NEL) and other external systematic reviews, focusing on whether previous systematic reviews and data analysis were rigorous by objective scientific standards.