Scientists have found new evidence, using innovative techniques, to support the growing body of literature that indicates kava may have a negative effect on the liver. Kava is a plant native to the South Pacific that has been used as a ceremonial beverage in the region for thousands of years, and, more recently, as a natural treatment for medical conditions such as anxiety. In recent years, serious concerns about the dangers of kava and the effects on the liver have resulted in regulatory agencies, such as the US Food and Drug Administration and Australia’s Therapeutic Goods Administration, banning or restricting the sale of kava and kava products.