Dr. Holliday has been a registered dietitian nutritionist for 18 years. For the past 15 of those years Dr. Holliday has helped to enhance the nutrition care of the United States largest correctional system and has served as the Chief of Nutrition and Dietetics for the Federal Bureau of Prisons since 2013. In 2021, he was selected by the U.S. Surgeon General to serve as the Chief Dietitian Officer for the United States Public Health Service (USPHS).

Dr. Holliday has extensive experience and knowledge working with government senior executive staff and attorneys on in-depth nutrition and dietetic matters and providing foreign and domestic intergovernmental legal and budgetary communications including, Senatorial, Congressional, U.S. Department of Justice, U.S. Attorneys’ Offices, and Office of the President responses.

Dr. Holliday has numerous peer-reviewed publications, extensive international and national public speaking experience, and experience consulting with private law firms, state attorney general offices, and public health offices on nutrition and dietetics and food service practices. He has also served as a consultant for the National Restaurant Association and has served as an adjunct instructor at two universities.