A nutritionist is an expert who counsels on food matters and its impact on health, both positive and negative. There are specific types of nutritionists including sports nutritionist, public health nutritionist, clinical nutritionist and nutritional scientist. Most often, the term ‘dietician’ and ‘nutritionist’ are used interchangeably, which should not always be the case. This is because, in many places, nutritionists do not require a degree to deem themselves as professionals and they are largely self-taught, unlike dieticians. Nutritionists are required to understand their patients’ needs, plan meal charts, follow up with their patients and monitor the changes on their body. They are not only found in multi-specialty hospitals but also have their own clinics and some even practice from their residences or are put up at educational institutions like schools and colleges. With the onset of various diseases like diabetes, cardiovascular diseases, anorexia and obesity, the need for these specialists are on the rise. All over the world, there are several professional associations like the Nutrition Society of India and the Association for Nutrition who work towards regulating the body of nutritionists in their respective countries and around the world. Here is a compilation of biographies of some of the most famous nutritionists. To learn more fascinating facts and details about them, read their biographies that include trivia, interesting facts, timeline and life history.

This ranking is based on an algorithm that combines various factors, including the votes of our users and search trends on the internet.

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 1 John Harvey Kellogg

John Harvey Kellogg
Famous As: Doctor, Inventor
Birthdate: February 26, 1852
Sun Sign: Pisces
Birthplace: Tyrone Township, Michigan, United States
Died: December 14, 1943
Physician, nutritionist, and businessman John Harvey Kellogg served as the director of the Battle Creek Sanitarium, which was a combination of a European spa, a hydrotherapy center, a hospital, and a hotel. He believed in biologic living. However, he is best remembered as the inventor of corn flakes.

 2 Antoine-Augustin Parmentier

Antoine-Augustin Parmentier
Famous As: Botanist, Pharmacist, Physician, Agronomist, Nutritionist
Birthdate: August 12, 1737
Sun Sign: Leo
Birthplace: Montdidier
Died: December 17, 1813

While in prison, in the aftermath of the Seven Years’ War, army pharmacist Antoine-Augustin Parmentier was forced to eat potatoes, which were considered fit only for prison ration and animal feed back then. Parmentier later persuaded the Paris Faculty of Medicine to declare potatoes edible and popularized them in France.

 3 Kevin Trudeau

Kevin Trudeau
Famous As: Nutritionist
Birthdate: February 6, 1963
Sun Sign: Aquarius
Birthplace: Lynn

 4 C. W. Post

C. W. Post
Famous As: Nutritionist
Birthdate: October 26, 1854
Sun Sign: Scorpio
Birthplace: Springfield, Illinois, United States
Died: May 9, 1914
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 5 Anna Lewandowska

Anna Lewandowska
Famous As: Athlete
Birthdate: September 7, 1988
Sun Sign: Virgo
Birthplace: Łódź, Poland

 6 Michael Greger

Michael Greger
Famous As: General Practitioner
Birthdate: October 25, 1972
Sun Sign: Scorpio
Birthplace: America
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 7 Caldwell Esselstyn

Caldwell Esselstyn
Famous As: Nutritionist, Rower
Birthdate: December 12, 1933
Sun Sign: Sagittarius
Birthplace: New York, New York, United States
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 8 Dean Ornish

Dean Ornish
Famous As: Physician
Birthdate: July 16, 1953
Sun Sign: Cancer
Birthplace: Dallas, Texas, United States
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 9 Russell Blaylock

Russell Blaylock
Famous As: Nutritionist, Neurosurgeon
Birthdate: November 15, 1945
Sun Sign: Scorpio

 10 John Boyd Orr

John Boyd Orr
Famous As: Teacher
Birthdate: September 23, 1880
Sun Sign: Libra
Birthplace: Kilmaurs, Scotland
Died: June 25, 1971

Apart from being a scientist and physician, John Boyd Orr also conducted ground-breaking research on nutrition. The Nobel Peace Prize winner, who was known for his campaigns to end world hunger, had also served the British army and navy as a medical officer. He was later knighted, too.

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 11 Elsie Widdowson

Elsie Widdowson
Famous As: Nutritionist
Birthdate: October 21, 1906
Sun Sign: Libra
Birthplace: London, England
Died: June 14, 2000

 12 Dennis Robert Hoagland

Dennis Robert Hoagland
Famous As: Scientist
Birthdate: April 2, 1884
Sun Sign: Aries
Birthplace: Golden, Colorado, United States
Died: 1949 AD

 13 Nevin S. Scrimshaw

Nevin S. Scrimshaw
Famous As: Scientist
Birthdate: January 20, 1918
Sun Sign: Aquarius
Birthplace: Milwaukee, Wisconsin, United States
Died: February 8, 2013

 14 Sarah Thomas

Sarah Thomas
Famous As: Fashion model
Birthdate: March 17, 1980
Sun Sign: Pisces
Birthplace: Swardeston, England
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