Plant based diets prevent and reverse a wide variety of ailments: heart disease, obesity, diabetes, prostate cancer, gastro-intestinal diseases and autoimmune diseases. Among the doctors, some are general physicians (so they don't focus on any particular ailment). Others focus on specific ailments heart disease or diabetes. I tried to find one video per speaker that is both informative and entertaining.
Dr Neal Barnard (Diabetes)
Dr Neal Barnard approaches the subject from the perspective of diabetes.
Website: Neal Barnard is the President of PCRM.org (Physicians Committee for Responsible Medicine).
Dean Ornish is the doctor who surprised the medical community in 1990 by demonstrating that heart disease could be reversed with merely lifestyle changes. Twenty years later, The Ornish Reversal Program came into being. This program targets heart patients and is covered by Medicare.
Michael Greger is popular for videos and articles peppered with information derived from hundreds of medical studies. His on-stage mannerisms and talking style make his videos both funny and informative. I love them! :)
The video above is the documentary (DVD) Simply Raw: Reversing Diabetes in 30 Days (92 minutes, 2009). This documentary was made by Gabriel Cousens' Tree of Life Center in Arizona, USA. Six patients with diabetes were tracked for 30 days as they lived at the Tree of Life Center. They followed Cousens' diet guidelines and daily exercise routines. Within days, all patients improved dramatically.
Gabriel Cousens is a charismatic personality. I met him face to face in a talk he gave at Oakland. His face really glows! He is a physician, homeopath, family therapist, ayurvedic practitioner, chinese herbalist, Kundalini teacher, Jewish rabbi, shaman and Kabbalah student. He also studied at the Shaolin Temple in China. Wow!
Book: The China Study (419 pages, 2006). This summarizes the knowledge gained by tracking 6,500 people in 65 provinces of China over a 20-year period. New York Times called this study the 'Grand Prix of epidemiology'.