Michael Anthony Klaper
July 19, 1947
|Education||University of Illinois College of Medicine, 1972 (Zoology, Psychology, Astronomy)|
|Relatives||parents: David Klaper, DDS (father); Jean T. Klaper(mother); Robert D. Klaper (brother); Cynthia Lee Pararo (ex-wife); Alese Jones (wife since April 8, 2014)|
|Institutions||Institute for Nutrition Research and Education, NASA, True North Health Center, Santa Rosa Medical Center|
|Sub-specialties||nutritional medicine, lifestyle medicine, veganism|
|Research||nutritional medicine, vegan nutrition|
Michael A. Klaper (July 19, 1947) is an American physician, vegan health educator and conference and event speaker, and an author of articles and books of vegan medical advice. He advocates rearing children on vegan diets throughout their entire lifetimes, beginning with the vegan mother's pregnancy.
Klaper was born July 19, 1947 to Chicago South Side dentist, David T. Klaper, DDS, and Jean T. Klaper (formerly of Boca Raton, Florida). Klaper had a younger brother, Robert D. Klaper, who died in 1992 at the age of 49. By his own report, Klaper grew up on a dairy farm in Wisconsin.[better source needed] In 1972, Klaper graduated from the University of Illinois College of Medicine and served his medical internship in Canada at Vancouver General Hospital with the University of British Columbia. He also studied obstetrics at the University of California, San Francisco.
His three books were authored during his time with Gentle World in Umatilla, Florida.
After graduating from medical school Klaper moved among a number of locations, practiced acute care medicine, and eventually became certified in urgent care medicine. He became a vegan in 1981. He is a medical consultant for the North American Vegetarian Society and has spoken at their Vegetarian Summerfest in 2012 and 2018. Klaper has spoken at several other national and international vegan, vegetarian, and natural health conferences and events.
He served as director of a vegan health spa in Pompano Beach, Florida from the early 1990s and was featured on the 1991 PBS documentary Diet for a New America by John Robbins. In 1988, Klaper was a NASA nutrition adviser and on vegan diets for long term space colonists.
He also served on the Nutrition and Preventive Medicine Task Force of the American Medical Student Association (AMSA), where he is a member of its Board of Advisors. He cofounded with John Robbins the environmental organization EarthSave International and served as its Scientific Director. He is a Founding Director of the Institute for Nutrition Research and Education. 
Klaper maintained a medical practice in Maui, Hawaii between 1995 and 2006, and practiced medicine in Whangarei, New Zealand between 2006 and 2009. In 2009, he relocated to Northern California, where as of 2011 he became staff physician and medical consultant at the nutritionally-based TrueNorth Health Center in Santa Rosa, where is now is on the Board of Directors of the TrueNorth Health Foundation. He is licensed to practice medicine in California and Hawaii and now is affiliated with the Santa Rosa Memorial Hospital.
His books include Vegan Nutrition: Pure and Simple and Pregnancy, Children, and the Vegan Diet. He has appeared in several films related to vegan diet and practice, including Eat This! (2005), Cowspiracy: The Sustainability Secret (2014), and What the Health (2017).
In the summer of 1992, he was inducted into the Vegetarian Hall of Fame of the North American Vegetarian Society.
According to oncologist David Gorski "Klaper subscribes to the all-too-common claim that a vegan diet is better than any other and supplements that claim with a belief that undergoing fasts, in which one consumes only water, is a major part of the path to health and wellness". Gorski has claimed that Klaper supports multiple pseudoscience medical claims such as acupuncture and naturopathy, and that Klaper also gives "highly dubious advice for cancer patients, even claiming that fasting can shrink malignant tumors. Klaper claims that fasts will clear up inflammation, eczema, arthritis and other issues." "The situation" according to Gorski, is "way more complicated than Dr. Klaper paints it". As a surgeon himself, Gorski is appalled that Klaper claims that fasting encourages "faster wound healing" a statement that Gorski calls "Bullshit!". Gorski has argued that "the product Dr. Klaper is peddling in terms of science is a massive exaggeration based on dubious science, cherry picked cases, and bad evolutionary analogies. Worse, fasts, even when supervised by a physician, are potentially dangerous".
Forewords in books, including
Various journal articles, including:
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