Modern science has shed light on how Hoodia functions. Hoodia sends signals to the brain that make the brain believe that the body is full, even when it is not. These signals are believed to be thousands of times stronger than the signals that sugar sends to the brain for the same reason. This makes Hoodia a very powerful appetite suppressant, and a very effective weight loss product. For this reason it is included in many over-the-counter dietary weight loss supplements. A molecule in Hoodia, P57, is believed to be responsible for Hoodias' ability to suppress appetite, increase energy levels, and help with weight loss. EST Suppressor is superior craving control.