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‘Myth of physical activity and obesity’ editorial suspended by journal

Article had attracted strong criticism from experts

Earlier this month we reported on an editorial published in the British Journal of Sports Medicine in which the notion that exercise can help obese people lose weight was described as a “myth”. BikeBiz reports that the piece has since been removed. Anyone attempting to access it is now greeted with the message: “This paper has been temporarily removed following an expression of concern.”

The editorial, which was jointly written by London-based Dr Aseem Malhotra and two other experts – one from South Africa, the other from the United States – argued that “manipulative marketing” by the food industry had undermined government initiatives to combat obesity and that “vested interests” distorted public health messaging relating to diet and exercise.

The authors said that while levels of obesity have soared in the Western world over the past three decades, levels of exercise have remained almost static and they therefore laid the blame for the nation’s weight gain on the type and amount of calories consumed. “Let us bust the myth of physical inactivity and obesity,” they wrote. “You cannot outrun a bad diet.”

Dr Malhotra later told the BBC:

"An obese person does not need to do one iota of exercise to lose weight. They just need to eat less. My biggest concern is that the messaging that is coming to the public suggests you can eat what you like as long as you exercise. That is unscientific and wrong. You cannot outrun a bad diet."

However, Philip Insall, director of health at the sustainable transport charity, Sustrans, said that in the case of the UK at least, levels of physical activity had in fact fallen over the past half century. “From 1961 to 2005, levels of physical activity in the UK dropped by 20 per cent and if current trends continue, will reduce by more than 35 per cent by 2030.”

Professor Mark Baker from the National Institute of Health and Care Excellence (NICE), which sets guidelines for health in England and Wales, was blunt in his response when the editorial was first published. He said that it was "idiotic" to downplay the value of exercise and reiterated NICE’s recommendation that people combine well-balanced diets with physical activity.

Alex has written for more cricket publications than the rest of the road.cc team combined. Despite the apparent evidence of this picture, he doesn't especially like cake.

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Airzound replied to andybwhite | 9 years ago
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andybwhite wrote:
vonhelmet wrote:

Calories in/out can't really be a myth, given it's basic thermodynamics. That or all those fat people out there are somehow violating the principle of conservation of energy, in which I am prepared to concede that we have bigger problems to deal with.

The problem is that people underestimate how much fat is in all those blocks of lard they're eating, and overestimate how many calories they're burning walking to their car to drive to the shop to buy more lard.

You're right - it ain't as simple as calories in vs calories out and it isn't lard that's the problem its sugar.
The way sugar disrupts the body's metabolism is the key to obesity - dieticians now understand this. Excess insulin production caused by the over consumption of sugar causes calories to be stored as fat within the body. Consuming the same calories as fat does not have the same effect.
The report was correct in what it was trying to say and that was we are not going to bear the obesity epidemic with exercise, we simply have to tackle it by reducing the amount of sugar (and carbs as its the same thing) in our modern diet.

Errr ……. no. You just have to eat less of EVERYTHING to lose weight = PORTION CONTROL. Start with cutting a quarter off portion size. If you is OBESE your portion control and frequency of eating is obviously poor and too regular respectively. It ain't rocket science. A calorie is a calorie whether it comes from protein, fat or carbohydrate. You just have to eat less food totalling less calories than you need for that day to function and carry out whatever you have to do. So you should be running a calorie deficit NOT a surplus. However what you actually eat is a different matter all together. You could eat 1,500calories of choclit, or 1,500 of crisps or indeed 1,500 calories of meat or fruit. But it would still be 1,500 calories and you would lose weight for that day as most people need about 1,800 - 2,000 calories each day just to function.

It's not rocket science. People are just either thick or lazy, or both and CBA'd so over eat by miles and the additional calories they have troffed are stored as fat. Think of Michelin man or woman.

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Jimmy Ray Will | 9 years ago
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Calories in versus calories out a myth? Thats going a bit far in my opinion... I'd prefer a 'gross over-simplification' as, when followed, this will absolutely work.

For me this subject is not about one golden 'simple message' that will somehow resonate with everyone.

Whether you are saying 'its not about exercise', or 'its all about exercise'' does not make a jot of difference... the fundamental problem is that people are not taking responsibility for, or investing appropriate effort into managing their personal health.

Some of this will be down to the welfare state we live in, much more will be down to the fact that its only relatively recently that the vast majority of us have an abundant access to excessive amounts of food.

There is no simple answer, the only long term solution is education and a forced cultural change... until those who are morbidly eating themselves into an early grave are ostracized and help up as failing themselves and society, nothing will change.

Its not OK to drink yourself to death, its becoming increasingly unacceptable to smoke yourself to death, but for some reason, we all need to pussy foot around those eating themselves to death.

And final point... whilst its not without value to focus some attention on thin people hiding the damaging effects of a poor diet in their slender frames... i.e. its important for all of us... this is not the epidemic we are talking about here.

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Rolfster | 9 years ago
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What the article said was that on its own exercise would not lead to a reduction in obesity in the general population. This to me seems to be perfectly reasonable as most people, even if they do "exercise", burn only a small number of calories (a 1 mile run uses approx 100 calories. They then overcompensate by eating too much.

The calories in vs calories out myth has now been well and truly busted. For those in doubt google Prof Tim Noakes or Gary Taubes for a complete demolition of this long-standing dogma. The answer to obesity lies in what you eat, not energy balance.

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Airzound | 9 years ago
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The article is factually true. You don't need to do any exercise to lose weight if you just eat less each day, less than the calories you burn each day - you will lose weight. However there are other factors to consider if you want to be fit and healthy. People in developing world countries with a poor food supply are smaller and thinner. When there is not enough food they starve and some times die. They are not obese. So the article is factually correct. What's all the fuss?

As for the food industry manipulating people, no shit Sherlock! And successive Governments who have all told us that fat is bad promoting foods with a high carb sugar rich content instead. This is a huge health scandal. And successive Governments who have done fuck all to provide a safe cycling infrastructure to allow people to cycle in safety whether they are fat or thin.

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joules1975 | 9 years ago
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Although the premise that exercise has no bearing on obiesity is likely wrong (lets be honest, we all know its false), it is certainly the case that you can't eat nothing but junk food just cause you exercise loads as you will be storing up other longer term issues (and if there is even a slight drop in your exercise levels you weight will rocket).

Therefore I wonder if the disgraced article has a bit of a point, the trouble is they took it to the extent of saying that exercise doesn't matter, when clearly it does.

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willvousden replied to joules1975 | 9 years ago
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joules1975 wrote:

Although the premise that exercise has no bearing on obiesity is likely wrong (lets be honest, we all know its false), it is certainly the case that you can't eat nothing but junk food just cause you exercise loads as you will be storing up other longer term issues (and if there is even a slight drop in your exercise levels you weight will rocket).

Therefore I wonder if the disgraced article has a bit of a point, the trouble is they took it to the extent of saying that exercise doesn't matter, when clearly it does.

Quite. With my diet, if I didn't do any exercise at all, I'd probably be about 15-20% heavier than I am now.

"Bad diet" on its own doesn't really mean anything anyway. On one hand, you can do as much exercise as you want and it won't make a diet of junk food any healthier. On the other, if you eat 5000 kcal worth of "healthy", balanced meals per day with no exercise... you're gonna get fat.

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