Carl D wrote on Apr 20
th, 2026 at 1:14pm:
Quote:
Exposure to Roundup Weed Killer has been linked to Non Hodgkin’s Lymphoma and other potential health risks.
And subsequently no proven link.
"The purpose of this review is to update the scientific literature linking exposure to glyphosate and GBFs to the development of NHL, with emphasis on new findings over the last 5 years.
...
A new animal study has also shown that glyphosate and GBFs are carcinogenic in rats and also cause acute leukemia.
...
In a recent study of Thai farmers,8 a high frequency (97.6%) of those spraying GBFs with backpack sprayers had high dermal and inhalation exposures, with high urine levels of glyphosate at the end of spraying (38.7 ug/g creatinine) and the next morning (37.3 ug/g creatinine). In another study,9 Thai farmers using high-pressure backpack sprayers had similarly high exposures to glyphosate (29 ug/g creatinine) and the urinary half-life of glyphosate was prolonged by 23 hours in those spraying 2"
https://www.sciencedirect.com/science/article/abs/pii/S2152265025042855Rats are not humans.
High dosage but no link to cancer. Despite the claim.
But, but ...epidemiologic studies...

Edit: More -
"The most significant study, which was not peer-reviewed in time to be considered by IARC, was the Agricultural Health Study (AHS). The AHS included a prospective group of licensed pesticide applicators from North Carolina and Iowa. Of the 54,251 pesticide applicators participating in the study, 44,932 (82.8%) used glyphosate. In a 2018 peer-reviewed article "Glyphosate Use and Cancer Incidence In The Agricultural Health Study" in the Journal of the National Cancer Institute, the authors concluded, “In this large, prospective cohort study, no association was apparent between glyphosate and any solid tumors or lymphoid malignancies overall, including Non-Hodgkins Lymphoma (NHL) and its subtypes.
EPA response
EPA’s conclusions do not agree with IARC’s conclusion that glyphosate is “probably carcinogenic to humans.” In a recent review of glyphosate, EPA considered a significantly more extensive and relevant dataset than the International Agency on the Research for Cancer (IARC). The EPA’s dataset consisted of 15 acceptable carcinogenicity studies, including studies submitted to support registration of glyphosate and studies EPA identified in the open literature. As a result, in February 2020, the EPA’s Interim Decision (ID) regarding glyphosate indicated that the EPA found that there are no risks of concern to human health when glyphosate is used in accordance with its current label. EPA also found that glyphosate is unlikely to be a human carcinogen. Even though EPA’s findings were challenged in a June 2022 June 17, 2022, by the U.S. Court of Appeals for the Ninth Circuit, EPA maintains the underlying scientific findings regarding glyphosate, including its finding that glyphosate is not likely to be carcinogenic to humans."
https://www.udel.edu/academics/colleges/canr/news/2023/november/roundup/