The HCG Diet is an extreme diet that involves injections of HCG (human chorionic gonadotropin), which is the same hormone women make when they are pregnant. Previously, the HCG Diet was defined by a 500-calorie diet paired with daily injections of HCG and was associated with dramatic weight loss. It's been a controversial diet because no doctor could really explain how it worked, and it had some odd rules like consuming only one vegetable per meal, restricting the use of body lotions, and only using the HCG hormone for 23 and 46 days. The HCG diet also doesn't allow exercise, creating the argument that once a patient is off the diet the weight that came off would return.
Today with the adaption of the original diet protocol, food list and administration of the diet, patients have found that they're able to lose weight rapidly and maintain their loss. Previously HCG was able to be administered orally but doctors and researchers have found that HCG injections are the only form of administration that will keep you from losing muscle while you diet.
Why does that matter? During a fast, dramatic loss of pounds with crash dieting, there is a high amount of muscle that is lost. Because muscle is heavy, this loss looks good on the scale because the pounds are dropping quickly. When you lose muscle, it's bad for your body, shape, and metabolism. The metabolism slows so much that dieter regain weight quickly, often regaining all the weight that was lost and then some. Additionally, it takes quite a bit of work to build back the muscle that has been lost.
Many protocols including the one from Slimworks protects muscle mass from being lost. In fact, there is more pure fat loss, which causes a shrinking in inches and size of clothing. The great result is that one can become leaner, in a smaller clothing size, but with more muscle. This muscle allows for a stronger metabolism and helps people maintain their weight loss long after their diet is completed.