Agreed not natural and I almost didn't add it to the list but I wanted to remain honest. But interestingly the primary precursor for MDMA comes from the root of the sassfras plant. Some of the cleanest you can find on the streets looks like those root beer wafer candies and taste like them too. With a bite of meth. I use it the least due to how hard it is to come by. I have mostly strict standards on sourcing my experimental drugs.