The decision by the IARC (part of the World Health Organization) to list glyphosate, found in the commonly-used herbicide Roundup, as “probably carcinogenic to humans” (group 2A), was based on their review of about 1000 studies.  Read more about the IARC’s decision here.

The decision was based on “limited” evidence of cancer in humans (from real-world exposures that actually occurred) and “sufficient” evidence of cancer in experimental animals (from studies of “pure” glyphosate).

IARC also concluded that there was “strong” evidence for genotoxicity, both for “pure” glyphosate and for glyphosate formulations.

The IARC Monographs evaluation is based on the systematic assembly and review of all publicly available and pertinent studies, by independent experts, free from vested interests. It follows strict scientific criteria, and the classification system is recognized and used as a reference all around the world. This is because IARC evaluations are based on independent scientific review and rigorous criteria and procedures.