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.