I took it for a few months and lost some of the weight I needed to, then had to stop as I couldnt afford them, ended up putting on 7kg in 6 months then fell preg again. I only put the weight back on as I stopped walking coz it was winter and continuously raining!

I will be going back on it when I am not breastfeeding anymore.

If you change your eating habits while on it and stick to it when you stop then you shouldnt put any weight back on.