Hi - welcome and well done to you for taking the plunge ..(into shakes, soups and minimins...lol allthough I know you have been around here for a bit..)
I had visible results by the end of week 2, beginning of week 3 I think it was. But the first visible results were quite amazing. Not sure whether that is the norm or if everyone is different which I would imagine in this crazy diet game. Just look at the different clothes size threads and how much it varies between all of us.
All I can say is that this diet is crazyly amazing and even if at some point you plateau, check your inch loss - that is quite something too and sometimes happens even if you are not actually loosing that week...
Good luck and enjoy the ride of your life..
xxx