Dieting Failure - Your Body Working Against You - Page 1
May 2017


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Evidence points to the fact that dramatic weight loss that stays off is possible, however over twenty years of research points to the fact that’s its highly unlikely that lost weight will not return. The scientific evidence was presented in Channel 4’s Super slimmers, did they really keep the weight off.

1. Significant weight loss is usually followed by regaining most, all or even more weight than was initially lost.

Dr Thomas Barber Human Metabolism Research Unit University Hospital Coventry:
"This is a hard wired response deeply set within our genetic architecture to change that it's not easy.

"The majority of people who lose weight ultimately do regain that weight. Certain studies have shown that over the course of 3 to 5 years the majority of people who have lost weight will then regain most of that”.

Professor Traci Mann, Health and Eating Lab University of Minnesota:
“Very few people know that diets don't work in the long run. Their body is changing, physically changing because of dieting”.

2. The body will try to replenish lost fat

Dr Barber:
“The current theory is that it comes down to our genetic hard wiring. During evolution one of the biggest threats to our species survival is starvation. Any loss of fat mass would have typically occurred during famine and so it makes sense, during those circumstances, to conserve energy and lay down more fat to mitigate the harmful effects of starvation. When we go on a diet and we lose weight that is a similar biological scenario to being starving.

“The bottom line is that regardless of how much weight you lose and the rapidity of that weight loss, the body will respond typically to regain the way that you've lost”.

Professor Mann conducted a study that compared 14 different types of moderate diets: “There is a ton of different kinds of diets out there, some low calories, some low carbs, low sugars, there's Paleo; there's all these different kinds. For the most part they all seem to lead to weight loss in the short run, but unfortunately they all also fail in the long run, so given that, it hardly matters which one you pick.

Dieters that were followed up after three years, on average have gained weight to within 2 pounds of the original weight. “I can draw the arrow; you take off this much weight and it slowly comes right back on”, said Professor Mann."

3. Regaining weight is biological

Dr Barber:
“Persistent metabolic adaptation refers to a drop in our resting metabolism, a drop even bigger than one would expect. It's one way in which the body can help replenish the fat stores. In addition to that, when we lose weight the body responds by enhancing appetite and seeking food to replenish those depleted that stores and that is largely through a hormone called Leptin. Some very interesting studies have shown that Leptin can actually change the way we taste food, it can enhance the taste and even the smell; it can have an effect on olfactory signals. The pleasure that one gets from eating, it seems to be enhanced when we lose weight”.

Professor Mann:
"Very few people know that when you diet for awhile your metabolism will change so that you have to eat less to keep the weight off. Very few people know that your hormones levels change, so that you’re more likely to feel hungry given the same amount of food and because people don't know these things, that's why they blame themselves when the weight comes back on.

"People feel like a failure, if they lose weight and regain it and that to me just tragic; it's not their fault that they regain it. Regaining it is a predictable consequence of losing it in the first place”.

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