Several test and trials have been conducted in order to estimate the effectiveness of Pure Hoodia as an appetite suppressant.

One such study was conducted of rats. While rats generally eat ANYTHING they get their little claws on, rats that were given Pure Hoodia avoided eating at all, even though food was supplied to them.

In another study that was cited by Phytopharm, a company that invested over $20M in Hoodia research, 18 humans participated in a clinical trial to evaluate Pure Hoodia’s appetite suppressing abilities. The group using Pure Hoodia ended up consuming about 1000 less calories per day compared to the placebo group. The volunteers were confined to a place where they could do nothing all day but watch television and eat…

Giant pharmaceutical company Pfizer were cooperating with Phytopharm and intended on developing a prescription drug based on Pure Hoodia, but eventually decided it was not economically viable to do that. It stands to reason given the lengthy and expensive Phase II and Phase II clinical trials required by the FDA in order to approve a prescription drug. Such drug would have been released only in 2012 or 2013, potentially costing tens of millions of dollars to meet FDA trial standards, only for supplement food companies to later use that research data as backing to their own products, ones that cost nothing to develop.