I think you would need lots of will power Laura, but you would lose lots of weight......
I have not tried it, but I just could'nt exsist on shakes and soup every day - I would have to chew and taste some food or I would go mad I think, and to watch other people eating while you are 'sipping' is just not for me.
I admire all these people who have lost so much weight on these type of diets - well done to them all.
I wish you good luck Laura if you swop over to CD, take care and give it careful thought before you do is my advice to you......X