Glyphosate: What it is and Why You Should Care

 

Glyphosate is the most widely-used herbicide in the world. It first went on the market in 1974 as a weed killer and to dry crops out quickly before harvest. Roundup and other glyphosate-based herbicides are still frequently used on lawns, gardens, parks, and school grounds for weed control, but its most prominent use is on the foods we eat such as grains, fruits and vegetables. Over time Roundup resistant weeds have started appearing which has led, of course, to an increase in its use. This is a big problem because of the toxic effects that studies are showing it has on our health. Its use is also harming surrounding biodiversity, polluting nearby waterways and harming soil strength and microbial diversity

A 2017 study found that human glyphosate exposure has increased more than 500% in two decades. It doesn’t help that the majority of the crops grown with glyphosate are diet staples for many people. It is used on more than seventy food crops but the biggest glyphosate users are genetically modified crops such as corn, soy, oats, and wheat. In fact, a bowl of Cheerios has more glyphosate per serving than vitamins D and B12, both of which are added to try to boost its nutritional value.

It’s not an overstatement to say glyphosate is literally everywhere. Researchers have found it not only in our food, but also our soil, ground and surface waters, rainwater, air and in our bodies. Even if you eat organic, the chances are still quite high that you’re consuming glyphosate, thanks to its ability to easily travel in the air from neighboring farms and agricultural sites. Recent biomonitoring has detected glyphosate in up to 93% of the population.

Glyphosate’s popularity comes in part from the fact that it is effective and relatively cheap. Low-cost versions from China and other countries with relatively relaxed environmental and health regulations flooded the market as glyphosate patents expired in the 1990s, making it even cheaper. This, paired with the fact that crops are becoming resistant to it, therefore requiring more, helps explain why its use has increased so dramatically in the past two decades. 

The Problem

The evidence against the use of glyphosate keeps mounting, yet it’s still legally soaking our food supply. Recent health studies have linked glyphosate to cancers such as non-Hodgkin lymphoma, endocrine disruption, infertility, immune dysfunction, birth defects, kidney and liver damage, as well as disruption of the microbiome. In 2015, the World Health Organization’s International Agency for Research on Cancer classified glyphosate as a “probable human carcinogen”. But the WHO is not the only group that recognizes glyphosate’s potential for serious harm. Bayer (the company who now produces glyphosate) is currently involved in almost 10,000 lawsuits.

Scientists have also raised concerns about the other ingredients in glyphosate-based herbicides. While glyphosate is the active ingredient, companies do not have to publicly disclose other proprietary chemicals in these herbicide formulations. Consequently, regulators and researchers cannot fully study these “inert” chemicals to determine their health effects. Many scientists and activists are working to reform the regulatory system so that companies can’t keep these chemicals secret.

There continues to be a deep corruption in most of the world that puts corporate interest over environmental and public health. Companies like Bayer have people inside the government working for the EPA to push policy in their favor. Sadly, this has become an industry standard, and not just for glyphosate.

There are at least ten countries, however, where glyphosate has been or will soon be banned. These include Mexico, Germany, Saudi Arabia, and Vietnam, and at least 15 others have restricted its use. Some states, as well as individual cities and counties in the U.S., including Los Angeles, Seattle, Miami, Baltimore, Austin, and Portland have also taken action to restrict or ban glyphosate.

Who is most impacted by glyphosate in foods?

While the damages are becoming more and more evident with time, there’s one vulnerable group who is truly the most at risk with the highest potential to be negatively impacted by widespread glyphosate contamination and that is our children. They are more susceptible than adults to environmental toxins like glyphosate because they’re still developing their critical neurological, hormonal, and immune systems.

So it’s unfortunate that conventional cereals, oats, pastas, and other easy-to-eat, easy-to-snack on, easy-to-bring-to-school foods that kids love are often the ones most affected by glyphosate. Recent tests by the Canadian Food Inspection Agency found glyphosate contamination in 80 to 90 percent of popular packaged wheat-based products including cereals, pizza, crackers, and pasta.

A study conducted by the Center for Environmental Health reported that children carry much higher levels of glyphosate in their bodies than their parents. And it’s not just school-aged children getting exposure via cafeteria lunches, breakfast cereals, and afternoon snacks. Alarmingly, a recent study found one-third of American newborns had glyphosate in their bodies as well.

Ways to avoid glyphosate

Unfortunately, glyphosate is hard to completely circumvent. However, avoiding GMO foods and eating more organic foods when possible can help. If buying organic is not an easy thing for you to do, then thoroughly washing your produce with soap and water or letting it soak for twenty minutes in vinegar before cooking will greatly help reduce the toxic load. There are also two really helpful lists compiled by the Environmental Working Group which uses the latest USDA data to name the fruits and vegetables that tend to have the most and least pesticide residue (after they’ve been washed, to reflect how people actually eat them at home). After analyzing data on 46,569 samples of non-organic fruits and veggies, here is 2023’s list of the Dirty Dozen and Clean 15.

Peeling your produce can also help you to avoid any lingering pesticide residue. But remember that all parts of a plant, including the peels, have something to offer and often times, the outer layer is actually the most nutritious (did you know 30-40% of a potato’s fiber and the majority of its nutrition is found in its skin?). Choosing non-toxic methods of weed control for your lawn and garden will also limit exposure. I understand that living a pristine existence, completely free from toxins is unrealistic but it is important that we are aware of what we are often unknowingly putting in our bodies and taking the steps where we can to mitigate our exposure.  

Here are a few links to scientific articles (from an exhaustive list) that will give you an eye-opening breakdown of what glyphosate does to our bodies:

  1. https://www.mdpi.com/2071-1050/10/4/950
  2. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9101768/
  3. https://www.tandfonline.com/doi/abs/10.1080/13876988.2020.1762076

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