The HCG Diet plan is a calorie restriction diet and the strictest of its kind. There are good low fat foods and bad high fat foods. Useful and non-useful meats, fish, fruits, and even vegetables. So the question arises: Isn’t’ it the low calorie diet that is causing dieters to shed the pounds and not the HCG formula? Dieters say that it would be impossible for them to comfortably eat only 500 calories per day without the aid of the appetite suppressing properties of the HCG formula. Can we put comfortable and 500 calories per day in the same sentence? Users of the HCG formula exclaim that is the miracle.