I have been taking it for a week, have noticed my clothes are looser, I have more energy and not much appetite, as well as feeling a LOT less stressed. My daughter had similar experiences with it, went from a size 14 to an 11-12 in the first week . Not everyones body works the same way. I can definitely tell a difference. I am also a low carber, and I remember when they said all this same stuff about Dr Atkins diet....hmmmm.