A lot of Canadians are obese. That's a fact. But a lot of the things you think you know about that fact—why they're obese, how they could lose weight, what they need to hear from their doctors—just aren't true. Last month Canada unveiled a new set of guidelines for treating obesity, and the biggest headline among the recommendations was: "No dieting."

But the guidelines don't stop there. From an acceptance of surgery as a solution, challenging the biases of doctors and looking at obesity as a science-based problem, they call for a dramatic change in approach to the problem. Will they work? Will we follow them?

GUEST: Dr. Sean Wharton