Latest Research on Vitamin D
Doctors and researchers discuss the benefits and risks of vitamin D and why some Americans may not be getting enough of it.
Director, Office of Dietary Supplements, National Institutes of Health
Director, Musculoskeletal Diseases Branch and the Bone Diseases Program at the National Institute of Arthritis and Musculoskeletal and Skin Diseases.
professor of nursing and medicine at the Creighton University School of Medicine and investigator with Creighton's Osteoporosis Research Center.