1. Dennis McKenna received his doctorate in botanical sciences in 1984 from the University of British Columbia, where he wrote a dissertation titled Monoamine oxidase inhibitors in Amazonian hallucinogenic plants: ethnobotanical, phytochemical, and pharmacological investigations.
Dennis McKenna then received post-doctoral research fellowships in the Laboratory of Clinical Pharmacology, National Institute of Mental Health, and in the Department of Neurology, Stanford University School of Medicine.
Dennis McKenna's research led to the development of natural products for Aveda Corporation as well as greater awareness of natural products and medicines.
Dennis McKenna co-authored The Invisible Landscape with his brother Terence and Botanical Medicines: the Desk Reference for Major Herbal Supplements with Kenneth Jones and Kerry Hughes.
Dennis McKenna spent a number of years as a senior lecturer for the Center for Spirituality and Healing, part of the Academic Health Center at the University of Minnesota, Twin Cities.
Dennis McKenna became a senior research scientist for the Natural Health Products Research Group at the British Columbia Institute of Technology in the Vancouver area.
Dennis McKenna's research has included the pharmacology, botany, and chemistry of ayahuasca and oo-koo-he, the subjects of his master's thesis.
Dennis McKenna has conducted extensive fieldwork in the Peruvian, Colombian, and Brazilian Amazon.
Dennis McKenna is featured in the documentary DMT: The Spirit Molecule.
Dennis McKenna has been the main guest several times on the popular radio show Coast to Coast AM.
On December 16,2012, April 17,2017, and June 21,2018, Dennis McKenna was the guest on The Joe Rogan Experience podcast.
Dennis McKenna was a key guest on The Cosmic Echo Podcast on September 18,2018.