I started taking it a few days ago. I admit I have more energy, I\'m not as hungry, but I am wired as hell which I don\'t like. I didn\'t get much information on zantrex 3. I\'ve been reading some studies on google and see there isn\'t clinical proof that I will experience weight loss. Having said that, this is another weight loss gimmick I fell for. Today will be my last day taking it and I will be getting my money back from GNC.