Glyphosate is one of the most widely used herbicides in the United States and the key ingredient in Monsanto’s billion dollar product Roundup. Glyphosate is applied in agriculture and forestry, on lawns and gardens in public and private landscapes. Despite a “probably carcinogenic to humans” classification from the International Agency for Research on Cancer in 2015, the National Pesticide Information Center estimates more than 750 products contain glyphosate in the U.S. Since glyphosate testing began in 2016, reports of glyphosate residues have been discovered in popular vaccines, with the most contamination found in Merck’s MMR, however the FDA has confirmed trace amounts thousands of products, including cookies, crackers, cold cereals, and chips. The U.S. Environmental Protection Agency is finalizing a risk assessment for glyphosate to determine is future use, however, in the meantime, several human and animal studies and articles (below) show that adverse effects of glyphosate on children’s health have been disastrous: including contributing to autism and other chronic autoimmune and neurological diseases. In August of 2018, a landmark case was won against Monsanto’s Roundup: awarding a California school groundskeeper and father of three $289 million for causing him terminal non-Hodgkin’s lymphoma.


WHO: International Agency for Research on Cancer – Monographs Volume 112: Evaluation of five organophosphate insecticides and herbicides

The International Agency for Research on Cancer (IARC), the cancer agency of the World Health Organization (WHO), classified glyphosate as “probably carcinogenic to humans” in 2015.

Weedkiller found in granola and crackers, internal FDA emails show

Glyphosate, the active ingredient in the weedkiller Roundup, is widely present in the U.S. food supply. According to a news report, the Food and Drug Administration (FDA) “has had trouble finding any food that does not carry traces of the pesticide.” Despite decades-long use of glyphosate, the FDA only recently started testing for the chemical’s presence in food.

A series of articles by Anthony Samsel and Stephanie Seneff explains glyphosate’s relationship to many modern diseases. Many other articles and presentations by Dr. Seneff are available at her website:

  1. Glyphosate’s suppression of cytochrome P450 enzymes and amino acid biosynthesis by the gut microbiome: pathways to modern diseases. (2013)
  2. Glyphosate, pathways to modern diseases II: celiac sprue and gluten intolerance (2013)
  3. Glyphosate, pathways to modern diseases III: manganese, neurological diseases, and associated pathologies (2015)
  4. Glyphosate, pathways to modern diseases IV: cancer and related pathologies (2015)
  5. Glyphosate pathways to modern diseases V: amino acid analogue of glycine in diverse proteins (2016)
  6. Glyphosate pathways to modern diseases VI: prions, amyloidoses and autoimmune neurological diseases (2017)—This article states, “Most disturbing is the presence of glyphosate in many popular vaccines including the measles, mumps and rubella (MMR) vaccine, which we have verified here for the first time.”

Stephanie Seneff discusses glyphosate’s presence in vaccines.

A comparison of temporal trends in United States autism prevalence to trends in suspected environmental factors

This article reports that temporal trends for glyphosate use in agriculture correlate positively to the rise in autism (see Figure 6). Glyphosate “could be interacting in recent years with other toxins to drive up the prevalence of U.S. autism.”