Professor, University of Toronto, Departments of Nutritional Sciences and Laboratory Medicine and Pathobiology.

Professor of Medicine, Physiology and Biophysics; Director of the General Clinical Research Unit; and Director of the Bone Health Care Clinic and the Director of the Heliotherapy, Light, and Skin Research Center at Boston University Medical Center.

Professor Emeritus in the Department of Family Medicine and Public Health at the University of California, San Diego.

Director‚ Sunlight‚ Nutrition‚ and Health Research Center

San Francisco, CA, USA

www.sunarc.org

Assistant Clinical Professor, Department of Family Practice, University of Alberta, Edmonton AB

Vitamin D researcher and author of numerous studies and reviews on vitamin D and public health. Family medicine practice.

Research Director at Pure North S’Energy Foundation

Professor of Nutrition and Dietetics, College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK

Founder of the Sunlight Institute (www.sunlightinstitute.org) and author of "Vitamin D3 and Solar Power for Optimal Health"

President Ontario Society of Physicians for Complementary Medicine

Past Chair Ontario Medical Association Section of Complementary and Integrative Medicine

Adjunct Professor of Anesthesia at the University of Western Ontario