Leading the fight against the professional weight loss industry is Dr. Arya Sharma, a crusader for a new, medical approach to treating obesity that recognizes the patient's lived experience and takes into account just how difficult it can be for a person to lose weight and keep it off. But hope is on the horizon, Dr. Sharma says. Here, Dr. David Macklin, Medcan's director of weight management, interviews Dr. Arya Sharma, the founder and scientific director of Obesity Canada.