Well, up to now, the scientists have been studying hoodia for some years and have not found side effects. It is right that there are few studies on Hoodia, but up to now, no side effects have been found. Main reason is because Hoodia is a plant and not achemical developed by man. Therefore it is completely natural and is safe to eat.
If in doubt, ask the San people who have been eating Hoodia for years with seemingly no ill effects.
San people has no records of diseases like diabetes, cancer, and heart related ailments.
The San tribes do not eat processed or junk food, just natural foods, mainly plants, nuts and some meat from wild animals, not farm ones with hormones or antibiotics.
The conclussion: Hoodia is safe for you.
Source Hoodia California