Glucuronolactone is a naturally occurring substance manufactured by the human body. It has received some notoriety due to rumors that it was a Vietnam War era drug manufactured by the American government. The rumors go on to say that it was banned due to several brain tumor deaths at the time. These rumors are not based on documented facts.

It is one of the many ingredients in the currently popular Red Bull energy drink. Its positive benefits are undocumented as well.