Coalition for Advanced Cancer Treatment and Prevention


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Herbicides, Pesticides and Fungicides

Linked to Cancer, Dementia and Brain Damage

Anthony Chapdelaine, Jr., MD, MSPH, Exec. Dir./Sec.*

In 2015 the World Health Organization (WHO) rated many organophosphate pesticides and herbicides as “possibly carcinogenic to humans,” and rated the ingredient in Roundup™ (glyphosate) as “probably carcinogenic to humans.” Although glyphosate (including Roundup™) is called a “herbicide” it not only kills weeds indiscriminately (including milkweed, the main food source for the beautiful migrating Monarch butterflies which consequently are approaching extinction), but also kills frogs and tadpoles, and causes tumors in mice and rats.1

Researchers have shown that several different types of pesticides and fungicides likely are linked to Parkinson Disease in farm workers and in people living near farms who are then exposed to these toxic chemicals as they drift in the wind at very low concentrations.2, 3  

An example of what can happen when “miracle” pesticides and herbicides like glyphosate are finally banned just look at DDT. This once widely-hailed pesticide was banned over forty years ago, and yet DDE (breakdown product of DDT) can be found in about 80% of all blood samples. It takes decades for DDT to break down and can be found in the environment, in imported fruits and vegetables, in contaminated fish. It is strongly linked to Alzheimer’s disease dementia, especially for those carrying the APO4E gene. 4

GMO (genetically-modified) soy, corn and cotton seeds developed by Monsanto to contain genetic material that make them resistant to glyphosate (like Roundup™), which the company claims decreases the need for other herbicides, are now creating weeds resistant to Roundup™. Since the original introduction of Monsanto’s Roundup™ and its GMO seeds, and since the GMO seeds containing a bacterium gene that is a “natural” insecticide came on the market, there has been a huge four-fold increase required in the use of toxic herbicides and pesticides. In fact, 2,4-D (half of the Vietnamese Agent Orange defoliant) is being used again to control weeds now resistant to glyphosate. And the “miracle” GMO bacterium-gene-containing insecticide? Now, insects are showing resistance to it which requires additional insecticide spraying.5

The only solution to the problem of herbicide, pesticide and fungicide exposure at present is to eat as much organic food as possible. For a list of the twelve most-pesticide-contaminated fruits and vegetables, and the fifteen least-contaminated, go to the Environmental Working Group’s website.6

For those living near large farms where toxic chemicals are routinely used, limit exposure outside to the times that spraying is not going on, use several house plants (such as ferns) in frequently used rooms to help absorb toxins inside the house, and routinely, daily, take a couple capsules of alpha lipoic acid or milk thistle, to help the liver detoxify the chemicals to which you are chronically exposed.

Certain clays derived from volcanic ash (betonite, zeolite, montmorillonite) can absorb toxins from the intestinal tract (such as aflatoxin) as well as heavy metals (like mercury), pesticides and herbicides (e.g., paraquat and Roundup™), and viruses.7

* The Coalition for Advanced Cancer Treatment and Prevention a project of The National Fund for Alternative Medicine


  1. Guyton KZ, Loomis D,  et al, on behalf of the International Agency for Research on Cancer Monograph Working Group, IARC, Lyon, France, “Carcinogenicity of Tetrachlorvinphos, Parathion, Malathion, Diazinon, and Glyphosphate,” The Lancet Oncology, 2015 May, 16(5), Pgs 490-491.  
  2. Fitzmaurice AG, Rhodese SL, et al, “Aldehyde Dehydrogenase Inhibition as a Pathogenic Mechanism in Parkinson Disease,” Proceedings of the National Academy of Sciences 2013 Jan, 110(2), Pgs 636-641,
  3. Fitzmaurice AGRhodes SL, et al, “Aldehyde Dehydrogenase Variation Enhances Effect of Pesticides Associated with Parkinson Disease,” Neurology, 2014 Feb, 82(5), Pgs 419-426.
  4. Richardson JRRoy A, et al, “Elevated Serum Pesticide Levels and Risk for Alzheimer Disease,” JAMA Neurol, 2014 Mar, 71(3), Pgs 284-290.
  5. Benbrook  CM, “Impacts of Genetically Engineered Crops on Pesticide Use in the U.S. – the First Sixteen Years,” Environmental Sciences Europe Bridging Science and Regulation at the Regional and European Level, 2012, 24:24
  7. Lipson, SM, Stotzky, G, “Specificity of Virus Adsorption to Clay Minerals,” Canadian Journal of Microbiology, 1985, 31(1), Pgs 50-53.