Michael Greger

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Michael Greger, M.D.
Education Cornell University College of Agriculture and Life Sciences
Tufts University School of Medicine
Medical career
Profession General Practitioner and Director of Public Health and Animal Agriculture at the Humane Society of the United States
Field Clinical Nutrition
Specialism Veganism/Vegetarianism
Research Public health threats from industrial agriculture
Greger in 2007

Michael Greger, M.D., is an American physician, author, vegan and professional speaker. He is a graduate of the Cornell University School of Agriculture and the Tufts University School of Medicine. He became vegan in 1990.[1] He is currently the Director of Public Health and Animal Agriculture at the Humane Society of the United States and Humane Society International.

Career advocacy[edit]

Dr. Greger is licensed as a general practitioner specializing in clinical nutrition and was a founding member of the American College of Lifestyle Medicine. He was featured on the Healthy Living Channel promoting his latest nutrition DVDs and teaches part of Dr. T. Colin Campbell's nutrition course at Cornell University. Dr. Greger's nutrition work can be found at NutritionFacts.org, a 501c3 nonprofit charity.[2]

As the director of Public Health and Animal Agriculture for The HSUS and Humane Society International and a physician specializing in clinical nutrition, Dr. Michael Greger focuses his work on the human health implications of intensive animal agriculture. His work involves examining the routine use of non-therapeutic antibiotics and growth hormones in animals raised for food, and the public health threats of industrial factory farms. Dr. Greger plays a vital role in The HSUS's efforts to shape public policy on agriculture and nutrition. In 2011, he launched NutritionFacts.org to profile the latest news in nutrition research.

He also works on food safety issues, such as bovine spongiform encephalopathy (mad cow disease). He appeared as an expert witness to testify about mad-cow disease when cattle producers sued Oprah Winfrey for libel.[3]

Dr. Greger has been an invited lecturer at universities, medical schools, and conferences worldwide.[where?] He has lectured at the Conference of World Affairs, the National Institutes of Health, and the International Bird Flu Summit, among countless other symposia and institutions, testified before Congress, has appeared on shows such as The Colbert Report and The Dr. Oz Show, and was invited as an expert witness in defense of Oprah Winfrey at the infamous "meat defamation" trial.

NutritionFacts.org is a 501c3 nonprofit charity, backed by the Jesse & Julie Rasch Foundation and Dr. Michael Greger. Dr. Greger summarises research from scientific journals in short referenced videos.


Professor Joe Schwarcz of McGill University recommends Greger's videos but says they contain "cherry-picking of data. Of course that doesn’t mean the cherries he picks are rotten; they’re fine." and that Greger has swallowed veganism "hook, line, and sinker; not that there’s anything wrong with that."[4] Sceptic and physician Harriet A. Hall has also criticized Greger's video Uprooting the Leading Causes of Death, saying his videos are part of a genre featuring "a charismatic scientist with an agenda who makes sweeping statements that go beyond the evidence, makes unwarranted assumptions about the meaning of studies, and omits any reference to contradictory evidence".[5]

Major publications[edit]

He is the author of Bird Flu: A Virus of Our Own Hatching, which is still available for sale but also posted online in its entirety online at no cost.[6] The book received a favorable review in the Journal of Clinical Investigation[7] and somewhat more mixed but generally favorable one in Nature.[8] He is also the author of Carbophobia: The Scary Truth Behind America's Low Carb Craze (2005) and Heart Failure: Diary of a Third-Year Medical Student (2000).[9] In 2009, he produced a video with tips for avoiding swine flu.

Dr. Greger's recent scientific publications in the American Journal of Preventative Medicine, Biosecurity and Bioterrorism, Critical Reviews in Microbiology, Family & Community Health, and the International Journal of Food Safety, Nutrition, and Public Health explore the public health implications of industrialized animal agriculture.


All speaking fees and proceeds Dr. Greger receives from the sale of his books and DVDs are donated to charity.[2]

See also[edit]


  1. ^ "Interview with Dr. Michael Greger". Vegan Love Planet. 
  2. ^ a b "About Dr. Greger". drgreger.org. 
  3. ^ Reda, Bonnie Reda (28 February 2004). "Expert to dissect 'mad cow' disease in presentation". Rochester Democrat and Chronicle (Rochester, NY). p. B.3. Retrieved 26 January 2011. 
  4. ^ Schwarcz's blog at McGill
  5. ^ Hall's article on the Science Based Medicine site
  6. ^ Greger, Michael (Nov 2006). Bird Flu: A Virus of Our Own Hatching by Michael Greger. Lantern Books. ISBN 1590560981. Retrieved 17 August 2014. 
  7. ^ Pekosz, Andrew (Sep 4, 2007). "Book Review. Bird flu: A virus of our own hatching". J Clin Invest 117 (9): 2350–2350. doi:10.1172/JCI33078. Retrieved 17 August 2014. 
  8. ^ Oxford, John (21 December 2006). "The Next Pandemic?". Nature 444 (7122): 1007–1008. doi:10.1038/4441007a. Retrieved 17 August 2014. 
  9. ^ "Michael Greger, M.D". The Humane Society of the United States. 

External links[edit]