For me personally being 5 weeks in I haven't hit a wall but my good friend Rebecca took it for 6 months and kept a gradual weight loss the entire time. She stopped taking it and only takes a pill like once a week for the energy. she has yet to gain any back. It gets you into the habit of not eating as much and/or making better decisions. Like at this point or me I cant eat any fast food. Fries and burgers, smelling the greasiness, make me want to yak. But I guess time will tell. I will be updating this so if i do hit a wall I will be posting about it.