Okay, I think it's a very good question.
Let me go back. It's important for you to know that for over 30 years we didn't even known what Canadians eat in this country. We haven't had the data to tell us what Canadians are eating. In the 2004 Canadian Community Health Survey, we had good data on what Canadians are eating for the first time.
So in terms of assessing the impact or usefulness of a food guide to change behaviour, you ask, what behaviour? The behaviour you're looking at. So what does the food pattern look like? I always say I'm going to be reincarnated on the tobacco file or the physical activity file, because it's so much easier. It's a case of you don't smoke or you do smoke; you're physically active or you're physically inactive.
With the food guide, and with food patterns and food consumption behaviours, and identifying and measuring the impact of the food guide on those behaviours, it's not a quick screener. You're really looking at what is the impact on behaviour and does it change people in a direction that you want to take?
So it's a more complex evaluation. It's not to say there haven't been evaluations undertaken in academia and elsewhere that looked at it and said what and how the food guide performs. We actually undertook this in our review. At the very least, we wanted to know if people understand what the 1992 food guide is saying to them. What is it they're challenged with? And from that, we learned.