Dr. Donald K. Layman is professor Emeritus in the Department of Food Science and Human Nutrition at the University of Illinois at Urbana-Champaign.

He is internationally recognized for his research about dietary protein and amino acids. He has extensive research focused on muscle development and in studies of metabolic regulation for obesity, diabetes and cardiovascular disease.

He is widely sought as a keynote speaker at professional meetings, medical conferences, and as a consultant to major food companies.