Dr. Leticia Rao is a Professor Emeritus at the University of Toronto, Ontario, Canada, and former director of the Calcium Research Laboratory at the same university. She is also a former staff scientist at St. Michael’s Hospital, Toronto, Ontario. Her expertise is in bone cell biology with a focus on preventing osteoporosis. She studies bone cells in the laboratory and carries out basic and clinical studies of drugs, nutritional supplements, and phytonutrients including carotenoids and polyphenols in postmenopausal women. Her research has been presented at national and international conferences and symposia and she has published extensively in peer-reviewed scientific journals. She has co-authored one book and edited eight others on nutrition and health. Dr. Rao has frequently presented her work at international organisations.