Plant-Based Doctor & Expert Guest Authors These Plant-Based Diet Doctors & Experts are guest authors on EatPlant-Based, and they share articles that are important for the whole-food plant-based (WFPB) community and those interested in learning more about how diet affects health outcomes. T. Colin Campbell, Ph.D. Dr. Caldwell Esselstyn, Jr., MD Dr. Neal Barnard, MD Dr. Michael Greger, MD, FACLM Dr. John McDougall, MD Dr. George E. Guthrie, MD Dr. Brian Asbill, MD Dr. Sven Jonsson, MD