Adiel Tel-Oren (Dr. T), MD (Europe), DC (ret.), LN, DACBN, DABOM, CCN, FABDA, DABCT, is a holistic scientist who educates doctors and the public about nutritional and environmental medicine, functional medicine (science-based holistic approaches to diagnosis and therapy), and disease prevention via truly natural lifestyle and dietary modification.

His approach to patient care relies on science-based education and nutritional therapy utilizing advanced functional laboratory tests (assessing the potential causes and process of disease) needed to enhance health, support anti-disease processes, or prevent disease progression; to predict individual susceptibility to various disorders; and to enhance productive longevity.