Good afternoon. I want to thank the committee for inviting me here to speak today.
I'm a practising physician. I'm one of only three Canadian physicians certified by the American Board of Bariatric Medicine, the only medical body in North America currently offering certification in medical weight management.
Since April 2004, I've dedicated my practice exclusively to the treatment of obesity, opening the Bariatric Medical Institute, where I work daily alongside a registered dietician and a certified personal trainer. Using an evidence-based approach, we do not require specific diet plans, products, injections, or supplementation. Instead, we utilize education, motivation, and support in helping our patients achieve sustainable weight loss.
We've enrolled over 700 patients, with 80% of those completing our five-and-a-half-month program achieving medically significant weight losses, as have 100% of those completing our subsequent year of lifestyle maintenance.
Perhaps the first thing our registered dietician teaches our patients is not to follow Canada's Food Guide, as it simply does not reflect medicine's understanding of the role of chronic disease, and recommends far too many calories.
I've been asked to talk to you about the impact of the food guide on childhood obesity; however, it is impossible to restrict the focus solely to children, as study after study report that the family food environment and parental dietary behaviours have a very dramatic impact upon the development of childhood obesity. Therefore, my focus will be on the food guide and its contribution to obesity in Canada.
When Canada's Food Guide was last revised in 1992, the number of recommended servings for all food groups were increased significantly, as shown in the attached chart. Health Canada explained the increase as a shift between the foundation diet approach and a total diet approach. Semantics aside, according to Statistics Canada, since the release of the 1992 food guide, the average daily consumption of calories by Canadians has increased by over 18%, and that's reflected in figure one.
I'm going to diverge from my prepared statement. I know that Calla and Joyce have both referred to a study that was published by Statistics Canada. What neither mentioned to the committee is the fact that the note on that actual table states that comparisons cannot be made due to the difference in methodologies in collection. The diagram I've included with my documents is actually based on 40 years of annually collected plate waste adjusted food disappearance tables, a far more robust data set.
Over the same time period, from 1992 until now, obesity rates in children aged six to 17 have doubled, and in adults they have increased by 65%. These increases are in stark contrast to obesity rates between 1977 and 1991, where, according to Statistics Canada, the prevalence of obesity among adults was virtually unchanged. It would certainly follow that if we ate more servings, we would consume more calories.
So what are these servings that Canada’s Food Guide refers to? That’s a question that most Canadians can’t answer. In fact, Health Canada’s own research revealed that Canadians had a very poor understanding of what constituted a serving, perhaps due in part to the fact that the servings recommended by Canada’s Food Guide do not correspond with those found on nutrition facts labels. Despite this, the revised guide retains them and actually expands upon them.
The confusion will likely worsen with the proposed guide’s suggestion to use half the size of our palms to help us with meat serving sizes. Believe it or not, research has been done on palm volumes, and they have been found to vary by as much as threefold due to natural normal variation in the population. If you don't believe me, look at the palm of the person sitting beside you.
The weight of half the size of my palm in ground beef is 91 grams; my wife’s is 56 grams--dramatically different--and both weigh more than the guide’s recommended 50 gram serving size.
Health Canada’s calorie models and serving sizes rely on the information found in the 1997 Canadian Nutrient File. Unfortunately, Canadians’ serving sizes rely on what they can buy in their supermarkets, and to the best of my knowledge there are no 1997 nutrient file superstores in Canada. This discrepancy between Health Canada’s definition and the average Canadian’s application of serving size helps to explain what I feel is a dramatic underestimation by Health Canada of the number of calories their food guide leads Canadians to consume.
To give you an example, this past weekend I went to my local supermarket and looked at their bread section. While the 1997 nutrient file, and consequently the food guide, conclude that a slice of bread weighs 28 grams, that was true with only two of the 31 loaves of bread I saw. Of the remaining loaves, over two-thirds weighed 60% more than expected by Canada’s Food Guide.
Remember, if there is more of a specific food there are more calories, and obesity's currency is calories. If, for one year, the only thing I did differently was eat one slice of the 45-gram bread in place of the 28-gram bread, I would gain as much as 5.2 pounds. Why? Calories.
In her 2004 report, Healthy Weights, Healthy Lives, Ontario's Chief Medical Officer of Health, Sheela Basrur, stated, that “body weight is the relationship between 'energy in' and 'energy out'” . The energy in of course is measured in calories, not foods, yet the food guide and Health Canada have a habit of explicitly stating, and I quote, “Follow the food guide to make healthy food choices and maintain a healthy weight”.
Unfortunately, choosing healthy foods does not necessarily mean choosing an appropriate number of calories. Healthy eating has to do with the foods you choose, whereas weight management has to do with the calories you choose. You can gain weight eating only salad if you eat enough salad, and you can lose weight eating only ice cream if you choose not to eat too much.
In what I see as a mind-boggling omission given a rapidly worsening epidemic of obesity, conservatively costing us $6.6 billion annually, resulting in 57,000 premature deaths between 1985 and 2000, the proposed revision to Canada's Food Guide to Healthy Eating provides zero guidance on calories, aside from vague, utterly useless statements like “Try not to eat too much more or too much less”, ”Be aware of your portion sizes”, and “Choose foods that are lower in Calories”. The fact is, by failing to provide guidance on calories, Health Canada puts Canadians at a dramatic disadvantage at managing their weights.
The easiest analogy for calories is money. Before you buy anything, you need to know how much money you make, and how much whatever you want to purchase costs. It's the same with calories. How can you make an informed decision on what to eat if you don't know how many calories you burn? I wonder how many people here know how many calories they burn in a daytime? If you knew the sandwich you were considering had more than half the calories you burn in a day, would you still buy or eat that sandwich? Why did Health Canada spend so much time and effort on new labeling requirements if they refuse to teach Canadians how to interpret and apply the first and most important value on the label—calories?
Health Canada's lack of guidance to Canadians on the treatment and prevention of obesity is not restricted solely to the food guide. Despite being labelled an epidemic by the World Health Organization, the Centre for Disease Control, the Canadian Institute for Health Information, the Canadian Medical Association, and virtually every major medical and public health organization in the world, it may interest committee members to know that on Health Canada's own website, obesity is not listed in the section on diseases or conditions or in its section on food and nutrition or in its section on healthy living. In fact, the only place where you can find obesity mentioned on Health Canada's website is in an A-to-Z index, where there are two links—the first to an information sheet on cardiovascular disease, and the second to Canada's Food Guide.
In my view of the role of Health Canada, I would have thought Canada's Food Guide would be reflective of the best available evidence for the role of diet in the prevention of chronic disease, as well as serving to help stem the rising tide of obesity in our nation. Unfortunately, in its current state, it does neither. My understanding is that Health Canada feels that the revised food guide, in its current form, is ready for release.
Today, I urge the committee to request that the Minister of Health not release the revised Canada's Food Guide until the concerns of this committee are taken into consideration. Furthermore, I recommend that calories be explicitly discussed in Canada's Food Guide, with guidance more useful than simply telling Canadians to eat less of them. Given the tremendous selection available to consumers, Health Canada's reliance on out-of-touch, unrealistic, and already-outdated 1997 nutrient file data as the basis for the revised guide's calorie models means that the vast majority of Canadians of all ages following the food guide will in fact continue to gain weight, eating far more calories than Health Canada's models predict.
I would recommend Health Canada revisit food labelling so as to ensure that the servings listed on Canadian food labels actually correspond with Canadian food guide recommended serving sizes. Currently they do not, increasing confusion.
Lastly, I recommend that the processes by which decisions are made in the recommendations for Canada's Food Guide be reviewed. Frankly, the dietary recommendations stray so far from mainstream scientific and medical understanding of the role of diet in the prevention of chronic disease that I am at a loss to explain this discrepancy. I hope this committee can shed some light on what influences may be at play here, before the food guide is finalized and released.
Thank you very much for your time and attention.