Theives run diet industry

I think that most of these diets just need to be followed to the word, and they work.  Many of them have the same sort of ideas.  Healthy food along with exercise.  The most recent diet that has sort of fascinated me is the 5 Factor Diet.  You should read about it.  It's cool.  You eat 5 small meals a day, so you're far from starving, you have certain types of foods that you can eat, you can cheat once a week, it lasts for 5 weeks, etc.  I would give it a try.   Of you can create a diet of your own, and just start eating only healthy foods an working out at least 4 times/week.  Good luck.

Most diets today have many similar principles but they present themselves in different ways. Basically, Diet related companies have understood that there are no miracles and that in order to lose weight the trick is to motivate the client to stick with the diet cause it's all about breaking bad habits. The thing that worries me is when companies sell diets that are short term and later on you end up finding out the weight is back on.

I think watching what you eat while exercising 5 times a week is key in losing weight. It's the way to lose weight and keep it off cause you change your lifestyle into something you can live with and the diet doesn't become a punishment. 

My personal belief is that any and all diets will fail if you don't practice some kind of portion control.  Many people get the idea that "so long as it's [you name it here--no fat/carb/sodium/whatever] I can eat as much as I want".  I personally beg to differ.  First things first, the no fat/carbs/blah blah blah equals no flavor!  Eat the foods you love, just eat enough to satisfy your taste for them.  Eat slowly--use a dessert fork to eat your dinner.  (Sounds crazy but it works!)

The other big key is to combine those small portions with some kind of exercise you enjoy so you stick with it.  The best kind of exercise is what is called "lifestyle" exercise--things like dancing, rollerskating, playing sports, you get the idea.