The Lacuna Project

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Exhibit 101

Retraction notice: Williams, Kroes and Munro, Safety evaluation and risk assessment of the herbicide Roundup and its active ingredient, glyphosate, for humans (2000)

Exhibit 101 ยท Journal notice

Retraction notice: Williams, Kroes and Munro, Safety evaluation and risk assessment of the herbicide Roundup and its active ingredient, glyphosate, for humans (2000)

Retraction Watch reports that the retraction notice, posted online in November 2025 and running over 1,000 words, cites Monsanto employees' 'apparent contributions' as co-writers without acknowledgment and reliance on unpublished Monsanto studies although other studies existed. It quotes a Monsanto email from toxicologist William Heydens, written about a later paper: 'Recall this is how we handled Williams Kroes & Munro 2000.' It reports that New York Medical College told Science in 2017 it had found no evidence that Williams violated its ghostwriting policy, and that Kroes died in 2006 and Munro in 2011.

Source
Regulatory Toxicology and Pharmacology (Elsevier), reported by Retraction Watch
Date
November 2025
Grade
Reported
Document
https://retractionwatch.com/2025/12/04/glyphosate-safety-article-retracted-elsevier-monsanto-ghostwriting
Accessed
2026-11-09
Cited by
Findings citing this exhibit
Note
Additional report: https://www.thenewlede.org/2025/12/citing-serious-ethical-concerns-journal-retracts-key-monsanto-roundup-safety-study/

Cited by

Finding MED-4.5
Reported In November 2025 a toxicology journal retracted a 2000 glyphosate safety review, citing possible uncredited writing by Monsanto employees. A Monsanto-funded 2016 expert panel had corrected its acknowledgments in 2018 to add a Monsanto scientist.