Marilyn Diamond

 ( 1944 Births ) 

Marilyn Martha Diamond ( Horecker; June 4, 1944 – September 7, 2025) was an American author and speaker on the topic of anti-aging and longevity. She was known for advocating a "cleansing" or "detoxification" diet.

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Life and career Marilyn Martha Horecker was born in Washington, D.C. on June 4, 1944, the daughter of Bernard and Frances ( Goldstein) Horecker. Her father was a biochemist and served as dean of the Weill Cornell Graduate School of Medical Sciences. She grew up in Maryland and New York, and graduated from New York University in 1968, where she studied the Romance languages.

In 1985, with her then husband Harvey Diamond, she co-authored the best-selling health and wellness book Fit for Life.

Dal LaMagna (2010). 9780470921432, John Wiley & Sons. . ISBN 9780470921432

The book built on the natural health movement that had roots in 19th century, and was part of the development of the fascination with celebrity beauty in contemporary American culture.

Christopher Ziguras (2004). 9781134419692, Routledge. . ISBN 9781134419692

Diamond's ideas about diet and aging have been the subject of controversy in the media. In particular, nutritionists disagree with her assertion that some foods should not be eaten together.

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Personal life and death Diamond was married three times and had three children, a daughter and two sons. She died from complications of dementia in Roanoke, Virginia, on September 7, 2025, at the age of 81.

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Publications

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Books

• Diamond, Marilyn (2025). 9780446553643, Grand Central Life & Style/Hachette. ISBN 9780446553643
• Diamond, Marilyn (2025). 9781609615420, Rodale Books. ISBN 9781609615420
• Diamond, Marilyn (1987). 9781609615420, Grand Central Publishing. ISBN 9781609615420
• Diamond, Marilyn (1998). 9780380789672, Avon. . ISBN 9780380789672
  "Fitonics For Life Review". Diet Spotlight.
• Diamond, Marilyn (1990). 9780380789672, Grand Central Publishing. . ISBN 9780380789672
• Diamond, Marilyn (1987). 9780380789672, Grand Central Publishing. . ISBN 9780380789672
• Diamond, Marilyn (1998). 9780380789672, Avon Books. . ISBN 9780380789672
• Diamond, Marilyn (1991). 9780553404067, Bantam Books. ISBN 9780553404067

Categories: 1944 Births, 2025 Deaths, Alternative Detoxification Promoters, American Women Non-fiction Writers, Pseudoscientific Diet Advocates, 20th-century American Women Writers, 21st-century American Women Writers, 20th-century American Non-fiction Writers, 21st-century American Non-fiction Writers, Deaths From Dementia In Virginia, New York University College Of Arts & Science Alumni

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