DMT is a naturally occurring substance found in various plants, animals, and fungi. It can also be produced synthetically in a laboratory. DMT is the active ingredient in ayahuasca, a traditional South American shamanic brew. When taken orally, DMT produces powerful psychedelic effects. DMT is also smoked, snorted, or injected. DMT occurs naturally in many plant species, including psychotria viridis and mimosa hostilis. It is also found in animals such as toads and monkeys. Some researchers believe that DMT is produced in the human brain and released during certain states of consciousness, such as dreaming.