Dr. Leticia Rao is an Emerita Associate Professor of Medicine and former Director of the Calcium Research Laboratory, Department of Medicine, and St Michael’s Hospital, Toronto, Ontario. Her degrees include BSc Chemistry, University of the Philippines; MSc Food Science, Oregon State University; and Ph.D. Biochemistry, University of Toronto. Her area of expertise is bone cell biology and osteoporosis with an emphasis on effects of drugs and nutritional supplements. She has studied the effect of gravity on bone formation in osteoblast cells in an experiment sent to space with the Space Shuttle Columbia STS 107. Her research has been presented to national and international symposia and published in peer-reviewed scientific journals. She co-authored a book entitled 'Bone Building Solution” and co-edited a book on phytochemicals.