Dieting Failure - Your Body Working Against You - Page 2
May 2017

Page 1

4. Yo-yo dieting

Professor Mann:
“There is always that hope. People always think that they are going to be in that small minority of people who do manage to keep the weigh off for a long time. So I think people think, ‘oh diets don’t work for them, but they will work for me. I think people do think they could be the one. Hope and this belief that you will be the one, is part of what gets people to start the next diet”.

5. Diets are destined to fail?

Dr Barber:
“One conclusion could be for us to throw our hands up to say, ‘look we can't fight this what's the point of dieting when we are just going to regain the weight’, but you do get a small minority of people who can maintain weight”.

Professor Mann:
“About 40% of people regain it all plus more. There are a lot of obese people out there, who are convinced that the reason there as heavy as they are is because of all the diets that they’ve gone on. With each one they lose and then regain a little more, lose and regain more, so over time your weight is going up up up and I think that's accurate.

“The fact that diets don't work should not be taken as bad news, it should not make people feel hopeless. I really think it's a liberating message, because it will free you from being on this horrible diets cycle. Diets where you lose, you regain, diet again you lose regain …… I think this is a very liberating message”.

5. Can science help?

Professor Mann:
“We have no idea how to figure out if you're going to be in this group versus this group; science does not have a solution.

Dr Kevin Hall, Senior Investigator National Institute of Health (Biggest Loser Study):
"What we really don't understand is why it is that some people are more successful than others”.

6. Exercise Matters
“About 5 to 10% of dieters manage to take off a lot of weight and keep it off a long time. There are a few things they have in common though; one is they exercise a lot, for at least an hour a day every day. The other thing is that they seem to make keeping the weight off and they make not eating the single most important thing in their life”.

7. Is dieting success possible?

Dr Hall:
"The mistake is to say, ’oh well it's not worth even trying, because my metabolism is going to slow down by 500 calories a day’; probably not for most people. How will they slow down; maybe 100 calories a day for somebody gaged in 10% weight loss or something like that”.

Dr Hall believes that the biological drivers that make us regain weight are proportional, meaning that the less weight we lose the less strong the drivers will be: “You can't think of weight loss as a journey, as a temporary thing, because your body will be working against you. The question is what can you do to sustain the change that you're making and will that lead to clinically significant weight loss; probably yes. You have to persist in that intervention forever. Some people take that as pessimistic; some people take that as optimistic, because if you persist in something forever, then you can do it”.

Page 1