Hi Daniel
Diet pills that I tried in my younger days were like speed.... lots of energy for a short period of time and then a crash. I would never recommend them to anyone. It is not a good way to lose weight at all. It simply puts your body into overdrive and does nothing to help learn better ways to eat and keep the weight off. I think a sensible approach like Weight Watchers is a much better approach.
Good luck to your sister.
reach
