Tony Chetty, MD, FRCP(C) , MSc.
Associate Professor, Dept of Pathology and
Molecular Medicine, McMaster University
Medical Director, Bariatric Medical Clinic,
St. Joseph's Healthcare, Hamilton
Chair, Bariatric Medical Program Committee,
Ontario Bariatric Network

Dr. Tony Chetty obtained his Medical Degree in South Africa. He completed his Fellowship in Medical Biochemistry and Master's Degree in Health Research Methodology at McMaster University. His research interests have a focus on Clinical Trials, New Pharmacological approaches in Obesity and Type 2 DM Mx. He is currently an Associate Professor in the Department of Pathology and Molecular Medicine at McMaster University. Dr. Chetty is the Medical Director of the Bariatric Medical Clinic at St. Joseph Healthcare Hamilton. He is also Chair of the Medical Program task force Committee of the Ontario Bariatric Network.

Donna H. Ryan, MD, FTOS
Professor Emerita
Pennington Biomedical Research Center
President, World Obesity Federation
Baton Rouge, Louisiana

Donna Ryan, MD, FTOS is Professor Emerita at Pennington Biomedical in Baton Rouge, LA, and current President of World Obesity Federation. Her research focuses on nutrition, obesity and obesity comorbidities, with a special focus on primary care approaches to obesity management. She has been an investigator for various US National Institutes of Health-sponsored studies, including Pounds Lost, DASH (Dietary Approaches to Stop Hypertension), DPP (Diabetes Prevention Program) and the Look AHEAD study. Dr. Ryan's continuing interests focus on translation of effective weight management into primary care practices.

Dr. Ryan is Associate Editor-in-Chief of the journal Obesity and has authored more than 200 publications, primarily on obesity. She served as Co-Chair on the expert panel for the ACC/AHA/TOS evidence-based Guidelines on the Evaluation and Management of Overweight and Obesity in Adults and was a panel member of the 2015 Endocrine Society Systematic Evidence Review and Guidelines for Medications that Affect Body Weight.

For the past five years Dr. Ryan has been active in continuing education for practitioners in obesity management. She has served as a consultant and advisor to industry and has been a scientific advisor to many companies, and as a member of Data Safety Monitoring Committees. She is Co-Chair of the Steering Committee SELECT, a cardiovascular outcome trial of semaglutide.

Alfons Pomp, MD, FACS, FRCS(C)
Professor of Surgery
Digestive Surgery Service
Assistant Director of Professional Services
Université de Montréal Medical Center (CHUM)
Montréal, Québec

Dr. Pomp is an internationally recognized expert in advanced laparoscopic surgical techniques. He is a graduate of McGill University and the University of Sherbooke. He completed his surgical training at the University of Montreal and Rhode Island and practiced in Montreal at the CHUM/Hotel Dieu before moving to the Mount Sinai Hospital and then the Weill Cornell Medical College in New York City. He is Chief of GI Metabolic and Bariatric Surgery, the Leon C. Hirsch Professor of Surgery and is the Vice-Chairman of the Department of Surgery.

Dr. Pomp has written more than 100 PubMed cited articles and has been a speaker at over 250 national and international meetings. He was funded as a Principal Investigator in NIDDK/NIH Bariatric Surgery Research - LABS (Longitudinal Assessment of Bariatric Surgery). He has served on the executive boards of SAGES and ASMBS. His primary clinical expertise includes bariatric surgery, minimally invasive foregut, solid organ and hernia surgery.

He serves on the Editorial board of SOARD and Obesity Surgery. He is one of Castle Connolly's America's Top Doctors; won the SAGES Clinical Excellence Award in 2013 and was honored as an ASMBS "Thirty Members Who Made a Difference 1983-2013"

Sarah Chapelsky, MD, FRCP(C)
Diplomate of the American Board of
Obesity Medicine
Director, Women's Preoperative Weight Loss Clinic,
Royal Alexandra Hospital
Clinical Lecturer, University of Alberta

Dr. Sarah Chapelsky completed her undergraduate medical degree and internal medicine training at the University of Calgary, followed by a fellowship in general internal medicine at the University of British Columbia. Now based in Edmonton, she is a general internist at the Edmonton Adult Bariatric Specialty Clinic, a hospital-based medical and surgical program; medical lead of FEMME HOMME Weight Management Program, an intensive community-based program; Clinical Lecturer at the University of Alberta Department of Medicine; and Diplomate of the American Board of Obesity Medicine.

David E. Harris, MD, FRCP(C)
Diplomate of the American Board of Obesity Medicine
Richmond Metabolic and Bariatric Surgery Program
LEAF Weight Management Clinic

Dr. Harris is an Endocrinologist and General Internist trained at the University of British Columbia. He has completed the American Boards in Obesity and Bariatric Medicine. He works as a medical director of the Richmond Metabolic and Bariatric Surgery Program in Richmond, BC, for the past 6 years, and still remotely today.

Recently, his family relocated to Ottawa, and he has joined the LEAF Medical Weight Management Clinic. Dr. Harris enjoys teaching physicians in obesity and bariatrics, and participates in conducting clinical research - mainly studies in the bariatric surgery process, diabetes, and immunology integrated with clinical obesity studies. His future research goals include pharmacological studies of obesity, and also studies of brown and beige adipose tissue.