Diet pills are safe and effective? If so take a whole bottle and lets see what heppens ...i bet you would die. Diet pills are legal speed which increase your heart rate - remeber efedra? It was safe and effective too ....until some people died. The only safe effective to loose wieght is to eat less junk food, and work out more. There is no magic pill. But I understand being the owner of a GNC you cant exactly bash the product you are selling. My moto is if you cant find it in nature and make it yourself then you shouldnt eat it.