"Michael Greger is an American physician, author, and professional speaker on public health issues. He is a graduate of the Cornell University School of Agriculture and the Tufts University School of Medicine. He started eating a plant-based diet in 1990. He is currently the Director of Public Health and Animal Agriculture at the Humane Society of the United States (HSUS) and Humane Society International."@en . . "Michael Greger"@en . "Greger, Micheal"@en . . "American physician" . . .