ICBINEG
fascicle isn't being able to stick with diet plan an extremely key part of any diet?
I mean the drop out rate is important! You can't ignore the people that started your diet and couldn't keep it up and only measure the success of those that did?
I think it's reasonable and logical to assume that when a company describes their product or system as 'highly effective', that it means highly effective when used as directed. Those undertaking a diet will have different motivations/levels of motivation and will apply themselves in varying degrees to the diet. If some people try less hard than others, can you really say that's a reflection of the diet rather than a reflection of an individual's effort?
That's not to say that some diets aren't ludicrous, unhealthy, difficult to use etc. Actually, the point you are making is, for me, part and parcel of what's wrong with a lot of conventional diets - people having to 'stick with a diet plan', people ditching their diet 'who couldn't keep it up'.
Losing weight/getting fit shouldn't, and doesn't have to be, that hard. Not if you sort out the psychology as well as the physiology. I think the reason why dieting is so difficult for many people, is that they change their eating habits, often temporarily, often drastically, in a way that's not sustainable, without changing the way they think about food and eating.
It is possible to learn to eat healthily, including snacking inbetween meals if you want to; to enjoy food but not be obsessed with it, and to maintain a healthy weight. To do so usually involves eradicating some old habits and creating some new ones which might take time and effort (but not as much as proper dieting).