@Starfish: People can benefit from almost any kind of diet, while they're on it. If you "go on a diet", you submit yourself to discipline for the period of the regime. Then you come off and you probably just gain weight again.
Diets like Dukan are particularly bad for this because they have to be temporary. You can't eat like that permanently without damaging your health. Ignore fads like Atkins and Dukan; don't go on a diet, change your diet. Realise that if you're overweight, you probably have bad eating habits which require permanent change.
While Atkins is a bit of a fad, most people could benefit from eating less carbs and more protein/fat. Western diets tend to be carb heavy, which may not be optimal for losing fat.
While Atkins is a bit of a fad, most people could benefit from eating less carbs and more protein/fat. Western diets tend to be carb heavy, which may not be optimal for losing fat.