UK trained MD, now with 4 degrees, been professor at two universities. Dr. Keith was known as the world's "Number One Allergy Detective" for pioneering work in the field of food allergies and environmental sensitizers (chemicals, molds, Candida, etc).

He has authored several health books and a number of self-help manuals. Dr Keith is an ordained minister as well as an inducted "medicine man" in the Nemenhah tradition.