I have read all of the posts and this is what I have to say: I have taken another diet pill named Xenadrine back in the day when it still had ephedrine and it worked for me. Unfortunately, I stopped watching my eating habits and exercised less so I gained a few pounds. My body has a slow metabolism so I feel that I need supplements to help me have energy to work out and help me control my cravings. I started taking Zantrex-3 to help me out and I experience side effects the first day, but nothing after that. Right now, it is too early to tell if I am losing weight by it, but I will keep you all posted. My advise is this: take supplements if you feel you need them but remember to eat sensibly and work out. They are just boosters for people who have slow metabolisms and large cravings. (also, i didn\'t gain weight again until 3 years later, so not everybody \"crashes\" after taking diet pills) BE CAREFUL, and don\'t take too much. It is better to be overweight and alive, then skinny and dead. Love you all.