I am halfway in and have put on over a stone :( I exercise every day at the gym or aerobics but struggle to keep the weight off because my bipolar meds are so weight-gain-inducing and I also have a thyroid disorder due to my bipolar medication which makes me put weight on too! Not a good combination! Having said that, I am not overweight, just a bit heavier than I would like to be. I just concentrate on keeping fit and try not to focus too much on my weight. Some of my friends are slimmer than me, but I know I could knock spots off them at the gym! I suppose I do spend most of my working day sitting down so it's not that surprising I've gained weight. Oh, and I loooovvve chocolate! Best, KB