Does Roundup cause cancer?

Short answer: Scientists disagree. In 2015 the World Health Organization’s cancer agency, IARC, classified glyphosate, Roundup’s active ingredient, as “probably carcinogenic to humans” (Group 2A), citing limited human evidence for non-Hodgkin lymphoma. The U.S. EPA concluded glyphosate is “not likely to be carcinogenic to humans” at relevant doses.

IARC rates how strong the evidence of a hazard is; the EPA assesses risk at real-world exposure levels. Juries have reached different verdicts, and the lawsuits focus on non-Hodgkin lymphoma.

SourcesIARC vs EPA reviewEnvironmental Sciences EuropeRoundup class FAQweedkillerclass.com

Checked against primary sources on November 12, 2026 by Mason Arnao. This is general information, not legal advice. Related: Settlement status.

Know whether the class settlement covers you

The proposed $7.25 billion Roundup class settlement covers people exposed before February 17, 2026, and the opt-out period closed June 4, 2026. A final approval ruling is still pending. Official settlement FAQ

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Mason Arnao

About Mason Arnao

Mason David Arnao Mason David Arnao is an American entrepreneur, software engineer, and business executive based in Stuart, Florida. His career spans more than two decades in technology, automation, and lead generation systems. Arnao began his professional journey in the late 1990s as a computer technician for the National Basketball Association (NBA), where he was responsible for linking scoreboards, officials’ laptops, and stat monitors to broadcast networks. His technical precision and systems knowledge led him to join Professional Hospital Supply as a software engineer. There, he developed applications that improved data flow between medical suppliers and healthcare institutions, solidifying his foundation in enterprise-grade software development. By the early 2000's, Arnao advanced into web and SaaS infrastructure through Website Buddy LLC, a Florida-based development firm focused on building web tools for small businesses and online marketers. The experience refined his understanding of user-driven software and scalable online systems. In 2013, Arnao founded Waypoint Software, LLC, headquartered in Stuart, Florida. As President and Managing Partner, he built the company into a recognized provider of lead generation and real-time lead distribution technology. Waypoint’s software automates the acquisition, validation, and routing of consumer inquiries for marketing firms and data aggregators worldwide. The company serves hundreds of clients and is listed by the Better Business Bureau under “Sales Lead Generation.” Through Waypoint Software, Arnao has become a notable figure in the digital lead industry, combining technical engineering with automation strategy. His focus on system reliability, transparent data flow, and scalable integrations continues to position Waypoint as an industry leader in real-time lead management solutions.