hi bunjies
i've done this a couple of times and it is brilliant .. i've lost 7lb in 7 days, concave tummy, no hunger (unless you count mouth hunger - you know, just that desire to chew!!)
haven't put on weight after but there is a turbo-charge (I think??) plan that you are meant to follow ... for another 2-3 weeks I think. Lots of veg, brown rice, salmon and a couple of juices a day I think. I didn't follow as my diet, as you know, is very restricted anyway.
on the other hand, I have a friend whose normal diet is lots of carbs, red meat & choc. She has done the diet twice and then gone straight back to old diet so obv the effects have not lasted.
I think the general idea is that it should curb cravings - I definitely think that it works on this level to an extent but not on an emotional level, iyswim - and my friend is definitely an emotional eater, which is perhaps why she's not been so successful with it.
HTH. Good luck with it!! I have to say, when I do it I feel amazing. Energy through the roof.