Like hevaletia said, you should just read about it. Know what your body can take, consult with a doc. Too much of anything can kill someone, and everyone's body is different. I am currently taking HCG drops and it has been working. I am losing about 1-2 pounds a day, it's tough to be restricted to such a lean and green diet but it's stepping stones for making better choices in order to live a healthy life. =)