Treeza just to add to what I wrote earlier now that I've been weighed. My first week I lost 2lbs... Had been low carving for a week before weigh in- week 2 lost 3lbs and was very disappointed. Both weeks on sole source. After last weeks weigh in I decided to move to ss+ as I wanted to start swimming again and needed more calories. For the last week I've had three products every day- including a bar each day, a can of coke zero and a small meal (roast chicken and lettuce in the week and a two egg omelette with salad on the weekend!) At weigh in tonight I lost FIVE pounds! I'm not saying that everyone would get those results as weight loss is neither linear or predictable and us ladies all hold water at different times in our cycles! I'm just letting you know what is possible and on that basis I don't think your slip up will make any difference- it only will if you let it I.e think you've messed up and throw in the towel... I think you will be fine so keep your chin up x