Is obesity a disease?

Each year the Canadian Obesity Network Student and New Professional organization at the University of Ottawa organizes a public event related to obesity and health.  Two years ago Barry Levin from the New Jersey Medical School gave a lecture on strategies for preventing diet-induced obesity.  Last year we hosted a debate titled “Forks vs Feet” between Drs Bob Ross and Yoni Freedhoff, and the resulting video has been viewed more than 1000 times.

This year we are sticking with the debate format, with the question being “Is Obesity A Disease?”.  Our presenters will be Dr Arya Sharma (Scientific Director of the Canadian Obesity Network, bariatric physician and a popular blogger) and Dr Jacqui Gingras (an Assistant Professor and Registered Dietitian in the School of Nutrition at Ryerson University, and an advocate of the Health at Every Size Approach).  The event will be moderated by Dr Mark Tremblay, Director of the Healthy Active Living and Obesity Research Group at the Children’s Hospital of Eastern Ontario Research Institute, and author of seminal papers charting the rising level of obesity in the Canadian population.

The debate will be broken into 3 subsections:

  1. The health impact of obesity – does obesity cause increased health risk, or is it merely an innocent bystander?
  2. The medicalization of obesity – how has obesity come to be viewed as a medical condition, and is this a good or bad thing?
  3. Concluding statements: Should obesity be viewed as a disease?

Between each section there will be a moderated Q&A, with the hope being that the event is as much a discussion involving the audience as it is a debate between the panelists.

The event will be taking place from 7:30-9:30pm on June 7th at the Richelieu Vanier Community Centre in Ottawa.  Admission is free (although seating is limited on a first-come, first-serve basis) and refreshments will be provided.  For anyone coming by transit, the number 5 bus comes directly to the center from downtown Ottawa (there is also parking available on-site).  Feel free to print or distribute the posters for this event far and wide (I can provide a PDF version for anyone who would like one)

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Category: News, Obesity Research | 3 Comments

Petition: Make Childhood Physical Activity A Priority

Image by waferboard

Hopeful news for the Canadians among us – Liberal MP Kirsty Duncan has introduced a motion calling on the government to take action on the extremely low levels of physical activity among Canadian children and youth.  Better yet, other Canadians can also help out.

Here are her motions from May 9th (emphasis mine):

M-371 — May 9, 2012 — Ms. Duncan (Etobicoke North) — That, in the opinion of this House, the government should recognize that: (a) evidence shows that physical inactivity is a major public health issue in Canada; (b) children and youth are getting an average of 6 hours per day of screen time outside of school hours, and over 7 hours on weekend days; (c) only 9 percent of boys and 4 percent of girls meet the Canadian Physical Activity Guidelines; (d) Canada remains without a national physical activity strategy; (e) in 2005 Canada’s federal/provincial/territorial ministers of health agreed to the Integrated Pan-Canadian Healthy Living Strategy; (f) in 2010, Canada’s ministers responsible for health declared that the promotion of health and the prevention of disease, disability and injury are priorities, necessary to the sustainability of the health system, and that there has been little follow-through on this declaration from the government; and (g) there is a disconnect between the government’s articulation of the importance of the childhood inactivity crisis, and its demonstrable leadership and investment.

M-372 — May 9, 2012 — Ms. Duncan (Etobicoke North)That, in the opinion of this House, the government should immediately resume discussions with the provincial and territorial ministers responsible for health to develop a comprehensive pan-Canadian strategy to promote physical activity, commit to the resulting strategy, and make the necessary investments.

Here’s how others can help out:

I have embedded a petition below, which also calls on the Canadian government to take action against childhood inactivity.  If you feel strongly on this issue, please print the form and get at least 25 signatures from other Canadian citizens (they all need to sign on the form itself, no digital signatures or faxes).  Also feel free to embed the petition on your own websites, Facebook, etc.

Once you’ve got 25 signatures, send the petition to:

Ms Kirsty Duncan, MP
613 Confederation Building
House of Commons
Ottawa, ON
K1A 0A6

Petition May 8 2012

For those who prefer an online approach, you can join the “Canada needs a youth physical activity” Facebook page.

Why is this petition important?

Each time that Ms Duncan gets a petition with at least 25 signatures, it essentially buys her time in the Hours of Commons to read the concerns of the petitioners.  And the Government then has to respond to each petition.  The more petitions, the more times it gets brought up.  And hopefully if it gets brought up frequently enough, the government will take some action.

If you are working in an area related to physical activity (e.g. personal trainers, phys ed teachers, healthcare workers, parents, youth sport coaches, health researchers, etc) or if you simply care about physical activity, please consider printing the form and getting it signed by your friends and colleagues.

As an aside, I’m not promoting this petition as a partisan thing.  I’m not aligned with any political party, and would quite frankly be happy with any party that took physical activity and chronic disease prevention seriously.  So if you’d like to contact an MP from another party to get them on board, then please go ahead.  The more the merrier!

Why a petition about childhood physical activity?

Canadian children are not very physically active.  As the below figure illustrates, Canadian youth spend about 8.5 hours per day (more than half their waking hours) sitting down. They also spend more than 6 hours per day in front of TVs and other screen-based devices.  And only 7% of Canadian kids are meeting current physical activity guidelines (60 minutes of moderate or vigorous physical activity per day, on at least 6 days per week).  In fact, Canadian kids get so little vigorous physical activity that it is almost impossible to find in the below pie chart (look for the narrow purple slice at the top of the pie – that’s how much vigorous PA Canadian kids are getting on a daily basis!).

Source: Colley et al, Health Reports (2011)

Given the low level of physical activity and high level of sedentary behaviour among Canadian children and youth, it’s not surprising that the general fitness and health of this group has decreased substantially since the 1980′s, as we have discussed previously (and new evidence here).

So physical activity levels are very low, and indications are that the health of Canadian kids is heading downhill.  And yet, the Canadian government has no actual strategy for increasing physical activity levels in children and youth.  Ministers responsible for health declared disease prevention to be a priority necessary for the sustainability of the Canadian healthcare system in 2010, but there hasn’t been any action in the 2 years since (aside from the Fitness Tax Credit, which has not been much success in actually increasing physical activity levels, especially among those who need it the most).

So if you find any of this important, please print off and sign the petition, and join the Facebook page.

Travis

Category: Miscellaneous, News, Physical Activity | Leave a comment

Sedentary behaviour – one definition to rule them all

Exciting news – this week the Sedentary Behaviour Research Network published an updated definition of the terms “sedentary” and “sedentary behaviour” in French and English in the journals Applied Physiology, Nutrition and Metabolism and Movement & Sport Sciences – Science & Motricité.

In brief, the new definition states that to be engaging in “sedentary behaviour”, you must meet three very basic criteria:

  1. You must be expending very little energy (≤1.5 Metabolic equivalents)
  2. You must be sitting or lying down
  3. You must be awake

Older definitions tended to focus exclusively on energy expenditure, which made it unclear whether certain activities (e.g. standing still, sleeping) were sedentary or not.  This new definition clarifies these issues.

But more broadly, why was there a need for a new definition for sedentary behaviour?

Well, because currently people use the term sedentary to describe a variety of things.  
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Category: Miscellaneous, News, Peer Reviewed Research, Sedentary Behaviour | 6 Comments

Is Nutella Delicious? Absolutely! Is it Nutritious? Nope!

Image by love janine.

At the urging of my wonderful cousin Gina, almost exactly 3 years ago I wrote a post on the original ObesityPanacea.com examining the healthiness of one of my favourite breakfast spreads – Nutella.  It’s been one of our most popular posts, which is likely due to the fact that Nutella is both popular (it is incredibly delicious) and because the somewhat ridiculous notion that a jar of spreadable sugar and fat could be “nutritious” inspires people to go googling for the truth.

This week it was reported that Nutella’s parent company Ferrero has agreed to pay $3 million to settle a class-action lawsuit brought against the company for suggesting that it was a healthy food.  As Marie Allard recently pointed out (en francais), Nutella has more calories, sugar, and fat (and more “bad” modified palm oil) than an equivalent amount of chocolate cake icing (hat tip to Yoni Freedhoff).  The only real difference is that Nutella includes hazelnuts, and as I describe below, it doesn’t even contain many of those.

Why does this matter?  As our friend Yoni at Weighty Matters reports today, Nutella Canada continues to position Nutella as a healthy food.
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Category: nutrition | Tagged | 9 Comments

Congratulations, Dr Ferraro!

(l-r) Dr Nelson Nardo Jr, Travis, Dr JP Chaput, and new Dr Zach Ferraro

Just a quick note to congratulate my good friend and labmate Zach Ferraro for the successful defense of his PhD Thesis earlier this afternoon.  Zach’s defense attracted the largest crowd that I have ever seen at a Thesis – I counted more than 40 people in attendance.  In fact, there were so many people there that the defense had to be moved to a lecture theatre at the last minute to accommodate the large numbers. 
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Category: Miscellaneous | Tagged | 3 Comments

Canada’s fast food: the saltiest in the world?

Have you ever wondered how much salt is actually in those French fries from your favourite fast food outlet? New research published this week in the Canadian Medical Association Journal suggests that the answer to this question depends largely on your home address.

For instance, the salt content of fast-food French fries was nearly three times higher in Canada than in France (1.4 vs 0.5 g of salt per 100g of fries, respectively), and higher than that of every other country surveyed, including the US (0.6g/100g), UK (0.8g/100g), and Australia (0.8g/100g). An important bit of information I should add here is that the French fries came from the same 6 restaurants in all countries surveyed: McDonalds, Pizza Hut, KFC, Dominos, Burger King, and Subway.

Canada also seems to have the saltiest salads of all the countries surveyed. Indeed, the average fast-food salad in Canada has more than double the salt of a salad in New Zealand or France (0.8g/100g vs. 0.3g/100g).
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Category: News, nutrition, Peer Reviewed Research | 5 Comments