- female, 77 years old
- Jenny Craig (born Genevieve Guidroz in 1932 in Berwick, Louisiana) is an American weight loss guru who founded Jenny Craig, Inc. Raised in New...
- female, 52 years old
- Denise Austin (born February 13, 1957) is an American fitness and exercise expert, author, columnist and instructor. She is also a member of the...
- male, 56 years old
- Dean Ornish , M.D. Author of Love and Survival and Dr. Dean Ornish 's Program for the Reversal
- female, 35 years old
- Jillian Michaels ' knowledge of fitness training stems from years of martial arts and intense personal training. Best known as a trainer and coach...
- male, 95 years old
- Jack LaLanne is an American fitness, exercise and nutritional expert, celebrity, lecturer, and motivational speaker. LaLanne has been referred to...
- male
- John Basedow is a bodybuilder and "fitness celebrity" known in the United States for his "Fitness Made Simple" home workout videos and the...
- male
- John Hansen is a natural (drug-free) bodybuilder who won the Natural Mr. Universe title twice and was the winner of the first Mr. Natural Olympia....
- male
- Kenneth H. Cooper (born 1931), is an M.D. and former Air Force Colonel from Oklahoma. Cooper is the author of a 1968 book "Aerobics" which...
- male, deceased (1943)
- John Harvey Kellogg (February 26, 1852 - December 14, 1943) was an American medical doctor in Battle Creek, Michigan who ran a sanitarium using...
- female
- Jeanette Jenkins is the founder and president of the Hollywood Trainer fitness company. She studied human kinetics at the University of Ottawa....
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