The herbicide Roundup is sprayed onto "Roundup Ready" GM crops, including the vast majority of GM corn and soy grown in the United States as well as applied as a desiccant to facilitate harvest of a number of small non-GM grains. Residues of glyphosate, the primary ingredient of Roundup, are found in these crops at harvest. In the biomedical literature, concern has been expressed about our increasing exposure to glyphosate, although this remains a highly controversial area.
In March 2017 the state of California's Environmental Protection Agency's Office of Environmental Health Hazard Assessment (OEHHA) received approval to list glyphosate as an agent known to the state of California to cause cancer. Given the noted gap in the literature of studies examining 1) how glyphosate exposure might have changed over the decades since the widespread introduction of GM foods and 2) potential longitudinal epidemiological relationships between glyphosate exposure and human health, we have initiated the Herbicide Awareness and Research Project to conduct research into these areas.