One in 3 adults in the US has prediabetes. JAMA Associate Editor David L. Simel, MD, interviews Samuel Dagogo-Jack, MD, who is the chief of the Division of Endocrinology, Diabetes, and Metabolism at the University of Tennessee, about the diagnosis, screening, complications, lifestyle interventions, and medications for prediabetes. Related Content:

• Diagnosis and Management of Prediabetes