The HCG Diet involves physician-prescribed injections of HCG (Human Chorionic Gonadotrophin) along with calorie restriction in a structured program which allows for dramatic weight loss. While it is the calorie-restriction that leads to weight loss, it is the HCG that allows for the following:
- Reduced feeling of hunger.
- Reduced carb cravings.
- Mobilization of fat stores.
- Prevention of muscle breakdown by inducing an anabolic (muscle-building) state, as opposed to a catabolic state (muscle-breakdown), which happens with high calorie restriction.
Only the injectable form of HCG have been shown to actually raise the bloodstream levels of HCG. Other forms – such as pills, sprays and drops – are likely broken down before they ever get to the bloodstream, and do not raise the level of HCG.