Dr. Barry Dworkin answers your health questions

Guest: Dr. Yoni Freedhoff of the Bariatric Medical Institute

Dr. Ben Goldacre, physician, award-winning writer, and broadcaster, who has written the weekly Bad Science column in the Guardian since 2003 and is author of the book of the same name.

Dr. Hymie Anisman, Canada Research Chair in Neuroscience & professor in the Institute of Neurosciences at Carleton University and a professor within the Institute of Mental Health Research at the Royal Ottawa Hospital

Dr. Ross Tsuyuki, BSc(Pharm), PharmD, MSc, Professor of Medicine (Cardiology) and Director, EPICORE Centre, University of Alberta

· Dr. Richard Béliveau, Professor of Biochemistry and holds the chair in the prevention and treatment of cancer at the University of Québec at Montréal.

He is a member of the Neurosurgery-Oncology division at Notre-Dame Hospital and holds the Claude-Bertrand Chair in Neurosurgery, Professor, Department of Surgery and Physiology at the University of Montréal

He is a member of the Center for Cancer Prevention at McGill University and a member of the Montréal Center for Experimental Therapeutics in Cancer at the Jewish General Hospital

Dr. Béliveau is author of Foods That Fight Cancer and Cooking with Foods That Fight Cancer

· Nadeem Esmail, Director of Health System Performance Studies, Fraser Institute

· Dr. Irene Kochevar, Ph.D., Professor of Chemistry at the Harvard Medical School Wellman Center for Photomedicine and Massachusetts General Hospital

· Dr. Nora (Noni) MacDonald, MD MSc FRCPc, Professor of Pediatrics at Dalhousie University and Division Pediatric Infectious Diseases at IWK Health Center. She also is a consultant to the Department of Immunization, Vaccine, and Biologicals of WHO since completion of her term on the World Health Organization’s Global Advisory Committee on Vaccine Safety. Dr. MacDonald has long been recognized in Canada, as an advocate for children and youth health and as a leader in paediatric infectious disease.

Dr. Isra Levy, the City of Ottawa’s Medical Offer of Health and Dr. Nadine Sicard, Associate Medical Offer of Health and member of the National Advisory Committee on Immunizations

· Dr. Mike Tymianski, MD PhD FRCSC, Medical Director of the Neurovascular Therapeutics Program at the University Health Network. Professor in the Departments of Surgery and Physiology at University of Toronto and Senior

· Dr. David H Chan, MD, CCFP, MSc, FCFP, Associate Professor in the Department of Family Medicine at McMaster University and a family physician at the Stonechurch Family Health Centre and the developer of OSCAR