Glyphosate and the Argument in Favor of Choosing Organic Food

In our modern food system, glyphosate—a chemical found in the herbicide Roundup®—has become nearly unavoidable. While it may help streamline farming practices, its growing presence in our environment and food supply has sparked serious concerns regarding long-term health effects. If you’ve ever wondered why organic food is worth the extra effort (and expense), understanding the role of glyphosate in gut health, nutrient depletion, and chronic illness might offer a compelling reason.

What Is Glyphosate?

Glyphosate is an organophosphate compound used in broad-spectrum herbicides, most notably Roundup®. It’s also employed as a pre-harvest desiccant—sprayed on crops like cereals and legumes to dry them down faster before harvesting, even though it hasn’t been formally approved for this specific use. It’s not just in agriculture, either—glyphosate is also commonly used in residential weed killers.

Many of the crops treated with glyphosate have been genetically modified to be “Roundup Ready®,” meaning they can survive applications of the herbicide. These genetically modified organisms (GMOs)—including soy, corn, canola, sugar beets, cotton, alfalfa, and wheat—are not eligible for certified organic labeling. When used in livestock feed, they can also affect the quality of meat, dairy, and eggs, potentially compounding glyphosate exposure throughout the food chain.

How Glyphosate May Affect Gut Health

1. Disruption of Gut Microbiota

Glyphosate works by targeting the shikimate pathway, a metabolic route found in plants, bacteria, and fungi—but not in humans. The problem? Many beneficial gut bacteria like Lactobacillus and Bifidobacterium rely on this pathway, while more harmful bacteria such as Clostridium and Salmonella do not. This imbalance can lead to gut dysbiosis, potentially increasing inflammation and chronic disease risk.

2. Leaky Gut and Inflammation

Animal and in vitro studies suggest that glyphosate may increase intestinal permeability, commonly referred to as “leaky gut.” This condition allows bacterial endotoxins and food particles to pass into the bloodstream, triggering systemic inflammation, which is now widely recognized as a root cause of many chronic diseases.

3. Indirect Effects Through Processed Foods

Glyphosate residues are prevalent in genetically modified crops and highly processed foods. While the debate continues on whether glyphosate is the direct cause of some health issues, there’s strong evidence that overall dietary exposure to pesticides and ultra-processed foods contributes significantly to poor gut health.

How Glyphosate May Affect Nutrient Content in Food

1. Interference with Plant Nutrient Uptake

Glyphosate’s mechanism of action goes beyond weed control. It chelates essential minerals, meaning it binds to metal ions such as manganese, iron, zinc, copper, calcium, and magnesium. This interferes with a plant’s ability to absorb nutrients, leading to:

• Reduced micronutrient content in crops 
• Poor root development 
• Increased reliance on synthetic fertilizers 
• Lower quality food for consumers 

2. Damage to Soil Microbiology and Nutrient Cycling

Glyphosate doesn’t just impact the plant—it also disrupts the microbial communities in soil, particularly beneficial organisms like nitrogen-fixing bacteria and mycorrhizal fungi. The result? Decreased nutrient cycling, reduced nitrogen and phosphorus availability, and a weakened agricultural ecosystem.

3. Residues in Food and Their Impact

Some studies suggest that glyphosate residues in crops are associated with:

• Lower concentrations of vitamins and minerals in fruits, grains, and vegetables 
• Potential inhibition of nutrient absorption in humans and animals (although this area needs further research) 

4. Soil Health and Resistant Weeds

The emergence of glyphosate-resistant weeds has led to more aggressive herbicide applications and tillage practices. These tactics degrade soil structure, reduce fertility, and further interfere with the natural availability of nutrients in the food we eat.

What Can You Do?

The evidence is mounting: glyphosate exposure is associated with immune system disruption, gut inflammation, hormone imbalance, and possibly even carcinogenicity. It is already classified as a mucous membrane irritant and can worsen conditions like allergies and asthma. Add in its suspected role in fertility decline and neurological disorders, and it becomes clear that minimizing glyphosate exposure should be a health priority.

Additionally, glyphosate is rarely studied in isolation. In real life, it’s combined with other chemicals in herbicides, pesticides, and fungicides, which may have synergistic effects that amplify toxicity.

Actionable Steps for Reducing Exposure

• Choose Organic When Possible: Organic crops are grown without glyphosate or other synthetic herbicides. Opt for organic produce and animal products whenever you can. 
• Use the EWG’s Dirty Dozen/Clean 15 List: If buying 100% organic isn’t realistic, consult the Environmental Working Group’s (EWG) annual list. It highlights which fruits and vegetables contain the highest pesticide residues (“Dirty Dozen”) and which are safer to consume non-organic (“Clean 15”). 
• Avoid Glyphosate-Treated Areas: If you live near farms, golf courses, or landscaped areas that may use glyphosate, consider keeping windows closed during spraying periods and avoiding those areas for several days afterward. 
• Switch to Natural Lawn Alternatives: Ditch residential herbicides that contain glyphosate and explore natural lawn care methods instead.
• Look for the “Non-GMO” Label: Especially when buying soy or corn products, this label helps ensure you’re avoiding genetically modified crops likely treated with glyphosate.

Special Considerations for Women and Children

Populations most vulnerable to glyphosate exposure include:

• Women of childbearing age 
• Pregnant women 
• Infants and children 

Due to rapid growth and development, these groups consume more food per pound of body weight than adults and often lack mature detoxification systems. The result is a higher vulnerability to the hormone-disrupting, immune-altering, and neurotoxic effects of glyphosate. Prioritizing organic choices in these groups can offer crucial protection during sensitive developmental windows.

Final Thoughts

Glyphosate’s widespread use and systemic presence in the food chain raise significant red flags from a functional medicine perspective. Its potential to alter gut health, disrupt the immune system, and deplete critical nutrients makes the case for organic food choices stronger than ever. While the transition to organic eating may seem daunting, even small, consistent steps can reduce your toxic burden—and that’s a powerful place to start.

References

Costas-Ferreira, C., Durán, R., & Faro, L. R. F. (2022). Toxic Effects of Glyphosate on the Nervous System: A Systematic Review. International Journal of Molecular Sciences, 23(9), 4605. https://doi.org/10.3390/ijms23094605

Vicini, J. L., Reeves, W. R., Swarthout, J. T., & Karberg, K. A. (2019). Glyphosate in livestock: feed residues and animal health. Journal of Animal Science, 97(11), 4509–4518. https://doi.org/10.1093/jas/skz295

Benbrook, C. M. (2016). Trends in glyphosate herbicide use in the United States and globally. Environmental Sciences Europe, 28(1), 3. https://doi.org/10.1186/s12302-016-0070-0

Myers, J. P., Antoniou, M. N., Blumberg, B., et al. (2016). Concerns over use of glyphosate-based herbicides and risks associated with exposures: a consensus statement. Environmental Health, 15(1), 19. https://doi.org/10.1186/s12940-016-0117-0

Zioga, E., White, B., & Stout, J. C. (2022). Glyphosate used as desiccant contaminates plant pollen and nectar of non-target plant species. Heliyon, 8(12), e12179. https://doi.org/10.1016/j.heliyon.2022.e12179

Peillex, C., & Pelletier, M. (2020). The impact and toxicity of glyphosate and glyphosate-based herbicides on health and immunity. Journal of Immunotoxicology, 17(1), 163–174. https://doi.org/10.1080/1547691X.2020.1804492