Background
Hoodia is a flowering, cactus-like plant that grows in the Kalahari Desert in Africa. Historically, the San (Bushmen) used hoodia to suppress appetite. Today, hoodia dietary supplements are promoted as an appetite suppressant for weight loss.
How Much Do We Know?
Little is known about hoodia because very little research on it has been done in people.
What Have We Learned?
Only one study of hoodia has been done in people. In this study, overweight women who took hoodia for 15 days didn’t lose more weight than those who took a placebo.
What Do We Know About Safety?
Little is known about the safety of hoodia. However, in the study in overweight women, participants who were taking hoodia had more side effects—such as nausea, vomiting, dizziness, and odd skin sensations—than those taking the placebo. They also had increases in blood pressure and undesirable changes in some blood tests.
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