The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) conducts and supports medical research and research training and to disseminate science-based information on diabetes and other endocrine and metabolic diseases; digestive diseases, nutritional disorders, and obesity; and kidney, urologic, and hematologic diseases, to improve people's health and quality of life. Seeks to help increase knowledge and understanding about diabetes among patients, professionals, and the public. Provides information on the internet and by mail.