Robert P. Heaney, MD, is a renowned expert in calcium and bone health. He is a professor of medicine at Creighton University in Omaha, NE, and an influential figure in the field of human calcium metabolism, health, and physiology. Dr. Heaney frequently lectures and educates on these topics and serves on the board of directors for the National Osteoporosis Foundation. His significant contributions to the understanding of human calcium intake were recognized by the American Dietetic Association in 1990.