Most definitely!! First 4 days I lost 5.5 lbs, second week I lost six, third week I lost four and last week lost one. Due for a weigh in tomoz, weighed myself this evening and have yet again only lost one... My consultant says its water retention and will go soon, but it's been a week, it's still not shifted. Haven't cheated once yet all my friends that are doing it have ate or drank and still lost more than me. I'm so infuriated and frustrated!! Got holiday in 22 days.. Wanted to lose one more stone, but doesn't look like its going to happen :-( x