I know you are thinking there is NO WAY I can make it on 500 calories a day! We promise you once the HCG has taken effect in your body, you will not be hungry. Over 30,000 people have followed this protocol and after the initial start of the program, they are not hungry! Remember your body is not going to be operating on just the calories you are eating because the HCG will be releasing the fat stored in your body. So if your body needs 1500 calories a day to function, it will take 500 calories from food and the other 1500 calories from your fat stores, so your body is never hungry and your metabolism does not adjust down to match your low caloric intake. Essentially HCG acts as a natural appetite suppressant! The current thought is that HCG interacts with the hypothalamus, and more specifically with a hormone that tells the body it is full. This is called leptin. HCG appears to trick the body into thinking it is full so you don’t feel hungry!