A legendary Professor in the area of Protein metabolism, Don's laboratory works to define protein and amino acid requirements and the interrelationship between dietary protein and carbohydrates in adult health. Their research is focused on the impact of diet and exercise on obesity, type 2 diabetes and the Metabolic Syndrome.

Surprisingly little is known about amino acid requirements during exercise or the impact of amino acids on metabolic regulation and Don's lab has helped to define roles of the branched chain amino acids (BCAA) in skeletal muscle metabolism. 

They are continuing this research to define mechanisms for control of muscle protein synthesis and differences in dietary protein needs for men versus women and for adults with sedentary versus active lifestyles.