There are various species of hoodia, but the Gordonii variation is the only one that contains the all-natural appetite suppressant. Tbis type of hoodia contains a molecule that has similar effects on nerve cells as glucose, and tricks the brain into the sensation of fullness. Results of human clinical trials in Britain suggest that hoodia may reduce the appetite by hundreds of calories a day or more.

In a BBC interview, Phytopharm's Dr. Richard Dixey explained how P57 works:

There is a part of your brain, the hypothalamus. Within that mid-brain there are nerve cells that sense glucose sugar. When you eat, blood sugar goes up because of the food, these cells start firing and now you are full. What the Hoodia seems to contain is a molecule that is about 10,000 times as active as glucose. It goes to the mid-brain and actually makes those nerve cells fire as if you were full. But you have not eaten. Nor do you want to.

Unlike anything that has been on the market before, Hoodia is not only an empty promise. Hoodia can help you to loose weight, and to keep it down in the long term.