HCG is natural hormone and stands for Human Chorionic Gonadotropin. Dr. Simeon discovered that this hormone could be used to assist dieters to lose weight and could help to curb one's appetite tremendously. In recent years a homeopathic oral HCG product was developed.
 
Homeopathic HCG has been shown to be just as effective on the diet in aiding with weight loss as the injectable HCG. HCG interacts with the Hypothalamus gland, increases metabolism and allows the body to use fat as energy.
 
Phases of the Official HCG Diet Plan:The dieting plan itself is divided into three phases so as to allow one to measure his or her level of success throughout the entire process. Here is a brief look at what each of the phases will be like:
First Phase: The initiation phase of the HCG diet plan is concentrated around teaching you how to make proper use of the HCG drops. The phase really lasts only two days, and you are actually encouraged to eat to your heart's content while drinking up to one gallon of water per day (no less than half a gallon though).
Second Phase: Once the first phase has been completed things will be set in full motion. As the phase continues the amount of calories you eat will gradually decrease, allowing you to shed extra fat and continue on your way to a healthy body.
Third Phase: This is the phase where the plan sets itself apart from the myriad of fad diets saturating the market these days. After 45 days (or whenever you reach your target weight), you will start to follow what is referred to as the maintenance cycle. In other words, once you have dropped the weight, you will be given the means to keep it that way and prevent yourself from going back to square one. While you are in maintenance mode there is no longer a calorie limit for you to abide by; you will have to simply drink lots of water and carefully watch what you eat.