It's so funny you say that, as I recently restarted Lipotrim and one thing I hate about this diet is the cramps. Yes the last time I was on Lipotrim I got like 2-3 really bad cramps in my calf muscles, like to the point where it stayed with me for the whole day. So horrible - I never did anything about it as I am scared that if I eat anything it will ruin the diet but from googling, 'almostskinny' is right... a lack of sodium in the diet can be one of the causes of cramp... which is a little annoying as the shakes are supposed to be nutritionally complete but maybe some of us require more salt? I feel your pain anyway and once you come of the diet, make sure to treat yourself to a nice packet of ready salted crisps just to shut up the cramps!