Interesting thread.
I mainly agree with Tidydancer. A few years ago I lost a lot of weight with WW and have kept it off. I had joined umpteen times before and it never really worked because I didn't stick to it. Last time, something clicked in my head and I finally realised, really realised that I couldn't eat what I wanted and be slim and neither can most people. If I wanted to be slim then I had to make some serious changes and it was entirely my choice.
The diet industry couldn't do that for me, it had to come from within but I found the framework, social aspect and support I got from them invaluable. They were really encouraging, I could ring my leader any time and there was no element of them wanting me to fail. I personally needed the structure. It taught me that I could have the cake or the wine but unless I wanted to go over my points, I couldn't have both. It taught me restraint and balance.
While the WW ranges were available in the meetings, I never bought any of them and there was no pressure to. I ate real food which I cooked myself.
The problem is most people see weight loss as a short term thing but you have to change the way you eat forever. Very slim people do not eat the same way as very big people. Go back to your old habits and you will regain the weight, it's not rocket science.
I think the government has as much to answer for as the diet industry. They still peddle the low fat, high carb guidelines that as discussed already, have a tendency to lead people towards crap. They really need to look at these again.
But ultimately, all the good food is still no magic bullet. If you eat too much good, nutritious home cooked food, you will still gain weight. Neither is exercise, as the old cliche goes, you can't outrun your mouth. Most of the work has to come from diet.
Finally, isn't starvation mode a bit of a myth? Yes, your basal metabolic rate does slow down if you dramatically reduce calorie intake over a long period but you also need fewer calories as your mass reduces. An 8st person will need fewer calories to maintain their weight than a 10st one. Also, I thought the reduction in BMR was temporary and it settles again once you eat to maintain.
Anyway no, I don't think the diet industry is evil. Money grabbing maybe but they are providing a service many people want and succeed with. You don't have to buy any of their products.