The World Health Organization's International Agency for Research on Cancer classified glyphosate as “probably carcinogenic to humans” after reviewing years of published and peer-reviewed scientific studies, one study concluding that exposure was linked with non-Hodgkin lymphoma. 

Emails from Monsanto and the EPA to ATSDR show that they may have hindered a report on glyphosate's risks. The U.S Agency for Toxic Substances and Disease Registry has had their draft toxicological profile out since April of this year, which reported an increased cancer risk from glyphosate exposures after evaluating animal studies as well as epidemiological data in humans with occupational exposure; however emails released via court proceedings show officials at EPA worked closely together with Monsanto representatives to block information regarding how chemicals work inside our body or interfere with human hormones - all because it would hurt profits if people knew about these possibilities upfront when buying weed killers like Roundup.

A recent study published in Environmental Sciences Europe argues that the U.S. EPA's classification of glyphosate disregarded substantial scientific evidence of genotoxicity, which is a negative impact on a cell's genetic material, associated with weed killing products such as Roundup (January 2019).

The July 2020 publication in Molecular and Cellular Endocrinology, Are glyphosate and glyphosate-based herbicides endocrine disruptors that alter female fertility? summarizes the effects of exposure to low or "environmentally relevant" doses on female reproductive tissues.

A recent study found that chronic, low-level exposure to glyphosate is associated with nonalcoholic fatty liver disease. The researchers believe this result implies an association between consumption of Roundup herbicide and NAFLD because the findings show signs of markers for NASLF in rats who consumed a small amount (equivalent) of RoundUp over time.