To the best of my knowledge there are no side effects associated with hoodia gordonii. Everyone’s body is a little different so there could be people who are allergic to hoodia, but for the most part hoodia is a safe natural way to control you appetite.

I have heard some people mention getting headaches from hoodia. My guess would be that the product you are taking contains more than just hoodia, and more than likely has a stimulant such as green tea, or caffeine.

If you’re having trouble with headaches or other negative side effects check the label of the hoodia product you are currently using and see if it contains other ingredients besides hoodia gordonil.

If it does you might want to check out Hoodithin or Desert Burn because each of them contain only pure hoodia.