Explanations for the success and failure of dieting

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1. What role do hormones, particularly ghrelin, play in the failure of dieting?

  • They are just there bloody deal with it
  • Makes you think you are hungry when you have just eaten
  • Stimulates appetite, making hungry people feel hungrier
  • When you are hormonal, you will want to eat more regardless of dieting restrictions
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2. What is the theory that suggests that our body has a particular range (about 10%) if weight it is comfortable in and therefore make it harder to lose and keep off a certain weight?

  • Dual model centre of feeding
  • High metabolism theory
  • Set point theory
  • Biological theory

3. Why does moderate rather than low fat content have a better success rate?

  • Because it's not as big a change for the body
  • Because low fat is more chemical therefore creates weight else where in the body
  • It's better for you
  • Because it's more natural

4. Mann did a meta-analysis of 14 studies that followed pps over 4 years after a diet, what did he find?

  • After a while, the weight gradually came back to the original weight
  • That some kept off the weight and some didn't
  • On the long term, pps had gained all back but 3kg of their original weight before the diet
  • That the pps had kept off all the weight because of the change in mindset

5. Diets will work best if they teach pps new eating and lifestyle habits. Why?

  • New habit and lifestyle, seen as a long term and permanent change to keep weight off in changing mindset and eating behaviour together
  • It's a placebo effect to help you lose and keep off the weight
  • Changes the cognitive belief to say that you can do it
  • It shows that you can't go back and forces you to focus to change rather than the diet itself


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