The HCG diet program is the most powerful weight loss method in the world today. It entails the daily use of at least 150 IUs of HCG along with a reduced calorie diet program (information on this program is given in the guides supplied with your order). The modern approach to this program allows for 700 calories per day with many fruits/vegetables and proteins as well. This diet program as began by Dr. A.T.W Simeons in the early 1950s, and has been studied extensively since.