Michael Herschel Greger is an American physician, author, and speaker on public health issues best known for his advocacy of a whole-food, plant-based diet, and his opposition to animal-derived food products.

Gene Stone is an American writer and editor known for his books on animal rights and plant-based food..

Timothy Ferriss is an American entrepreneur, investor, author, podcaster, and lifestyle guru.

T. Colin Campbell (born 1934) studied pre-veterinary medicine at Pennsylvania State University (B.S., 1956) before attending the University of Georgia's veterinary school. He coined the term "plant-based diet" in 1980 to present his research at the National Institutes of Health and has authored over 300 research papers and four books, including *The China Study*, co-written with his son Thomas M. Campbell II.

Thomas M. Campbell II, MD, is a physician, researcher, and educator best known as the co-author of *The China Study*, a worldwide bestseller co-written with his father, T. Colin Campbell, PhD. He is also the author of *The China Study Solution*, has presented widely on nutrition for optimal health, and has developed clinical and research programs at the University of Rochester.

Lysa TerKeurst is an American speaker and author of Christian non-fiction.