Dr Suttajit is Professor Emeritus, Faculty of Medicine, Chiangmai University, and was Dean of the University of Phayao, Thailand, where he supervises research into the scientific benefits of plant-based diets and cancer prevention. He has published over 100 papers and books and he has received research awards from Cerebros and from the Asia-Pacific Clinical Nutrition Society. He is the Founder/President of the Thai Vegetarian Association.