A company Dr.told me the only diet that works is : eat less than you are used to eating, and exercise twice as much...Losing weight without actually dieting isn't rocket science. Using more calories than what you eat, a balanced variety of foods, eating small but regularly and exercise are the key things when it comes to losing weight and keeping it off.
With these fad diets, as soon as you stop, you pile the weight all back on again, so they might work in the short term but are just a scam in the end.