The Hcg Pregnyl cure consists of a very low calorie diet (VLCD) in combination with HCG hormone treatments. During the 23 days cure you regularly inject a small amount of HCG into your body. Be aware that the HCG itself does not cause weight loss, it just modifies your eating behavior. This will make it possible to maintain the diet. We give you details of a 500 kcal fat and practically starch free diet to obtain optimum results.