David A. Macklin, MD is a leading expert in obesity medicine and behavioral weight management. Based in Toronto, he serves as Director of Weight Management at Medcan and is a lecturer at the University of Toronto Faculty of Medicine.

He is also affiliated with Mount Sinai Hospital and is a founding member of Obesity Canada. With over 16 years of experience, Dr. Macklin specializes in evidence-based, multidisciplinary approaches to obesity prevention and treatment, and has contributed to national clinical guidelines in Canada.