I don't understand fad diets. . .diets are just that, whatever anyone eats. if you eats chips, cheese, and drink beer all day, that's a diet. if you eat salads, tofu, and soy beans all day, that's a diet. . .anywho, the important thing to remember is a BALANCED diet, and a BALANCED diet includes carbs, fats, proteins, etc etc etc. the reason people loose weight on fad diets, is because it shocks the system into quick change. the reason the weight comes back is because it is a fad diet, NOT a lifestyle change.
While booze may not have carbs, it is still empty calories, and that's what counts. The only way to effectively loose weight, and keep it off, is to burn more calories than the body takes in, all while burning off the reserves the body has stored.
The licensed nutritionist side of me just gets irked when I hear so many people who gravitate towards these fad diets,it's just silly. While it may work in the short term, the long term isn't going to work, and this has been proven time, and time again.
Mind you, I am no shining example of health, so I'm not on a high horse here(I would kill the horse), it just boils down to eating smart, no matter what. everything in moderation. And the most important thing; Treat yourself. It is better to have some leeway, and treat yourself, instead of binge eating. Again, a BALANCED diet.