I have taken other weight loss pills and none have really been affective. I can not say that much more about H57 Hoodia. It does work a little, but not as much as I would like. I did lose 5 pounds in 2 weeks, but I think I would have lost that much anyways. I still ate about the same amount of food as I normally would, I just exercised more. It also has too much caffeine, which made me feel to hyper. It did suppress my appetite quite a bit during work where my lunch break is far later than ideal. I would just suggest to people that they exercise more often and harder if they are not losing weight. But if you have an injury or can not exercise then H57 Hoodia by Jec Nutrition might be just your thing.