Table of Contents
- Introduction
- Understanding Glyphosate and Modern Farming
- Is There a Connection to Gluten Intolerance?
- Food Allergy vs. Food Intolerance: A Crucial Distinction
- How Glyphosate May Disrupt the Gut Microbiome
- The Smartblood Method: A Phased Approach to Wellness
- The Organic vs. Conventional Wheat Trial
- Understanding Your Test Results
- Practical Steps to Reduce Glyphosate Exposure
- The Role of Scientific Research
- Conclusion
- FAQ
Introduction
It is a scenario many people in the UK know all too well. You enjoy a sandwich at lunch or a bowl of pasta for dinner, and within hours—or perhaps the next day—you are met with an uncomfortable, stubborn bloat. For others, the symptoms are less digestive and more systemic: a fog that settles over the brain, a sudden dip in energy, or an itchy skin flare-up that seems to have no clear cause.
Naturally, many of us look at the common denominator in these meals: gluten. Over the last two decades, the number of people reporting "wheat sensitivity" or "gluten intolerance" has risen significantly. While some of this is due to better awareness, many researchers are asking a more provocative question: is it the gluten itself that is the problem, or is it something applied to the crop before it reaches our plates? Specifically, does glyphosate cause gluten intolerance?
Glyphosate is the active ingredient in many of the world’s most widely used herbicides. While it was once considered almost entirely safe for humans, emerging research and growing public concern suggest its impact on our gut health might be more complex than we first thought. If you have been struggling with mystery symptoms and suspect wheat might be the culprit, understanding the potential role of agricultural chemicals is a vital part of your health journey.
At Smartblood, we believe true well-being comes from understanding the body as a whole, rather than just chasing isolated symptoms. In this article, we will explore the scientific theories linking glyphosate to gluten sensitivity, the impact of these chemicals on our gut microbiome, and how you can responsibly investigate your own triggers.
Our approach follows what we call the Smartblood Method: a phased, clinically responsible journey. We always recommend that you consult your GP first to rule out underlying conditions like coeliac disease or IBD. From there, a structured elimination diet—perhaps supported by a Smartblood Food Intolerance Test—can help you gain the clarity you need to move forward.
Understanding Glyphosate and Modern Farming
To understand the debate around glyphosate, we first need to look at how it is used in modern agriculture. Glyphosate was first synthesised in the 1950s but became a staple of industrial farming in the 1970s and 90s. It is a broad-spectrum herbicide, meaning it kills most plants it touches by inhibiting a specific metabolic pathway they need to grow.
In the UK and across the globe, glyphosate is not just used to kill weeds between rows of crops. One of its most common uses is a process called "pre-harvest desiccation." This involves spraying crops like wheat, oats, and barley with the herbicide shortly before harvest to kill the plant and dry it out quickly. This helps farmers ensure a more uniform harvest, especially in damp climates like ours, where uneven ripening can be a significant challenge.
The concern arises because this desiccation happens just days before the grain is milled into flour. Consequently, residues of glyphosate can remain on the finished food product. According to some reports, a significant percentage of grain-based products on supermarket shelves contain detectable levels of these residues.
The "Shikimate Pathway" Explanation
The primary argument for glyphosate’s safety has historically been that it targets the "shikimate pathway." This is a metabolic route used by plants and many bacteria to create essential amino acids. Because humans do not have this pathway—we get those amino acids from our diet—it was assumed that glyphosate could not harm us.
However, we now know that our bodies are not just made of human cells. We are home to trillions of bacteria, collectively known as the gut microbiome. These bacteria do use the shikimate pathway. If glyphosate residues affect these "friendly" microbes, it could potentially disrupt the delicate balance of our internal ecosystem, leading to many of the symptoms we associate with food intolerance.
Is There a Connection to Gluten Intolerance?
The rise in gluten-related issues has mirrored the rise in glyphosate usage almost perfectly over the last thirty years. While correlation does not always equal causation, the link is compelling enough that many independent researchers have begun to investigate further.
One of the leading theories suggests that glyphosate doesn't just sit on the wheat; it may actually change how our bodies interact with it. Some studies have suggested that glyphosate exposure may interfere with the way we digest complex proteins like gluten. If the protein isn't broken down properly in the stomach, larger fragments enter the small intestine, where they can trigger an immune response or cause inflammation.
Furthermore, glyphosate is known to be a "chelator." This means it can bind to minerals like iron, cobalt, and copper, making them less available for our bodies to absorb. Many people with long-term gluten issues or coeliac disease also suffer from fatigue or anaemia, which are often linked to mineral deficiencies.
Key Takeaway: The theory is that glyphosate may not "cause" gluten intolerance in the traditional sense, but it may create the environmental conditions in the gut—such as inflammation and bacterial imbalance—that make us more reactive to wheat proteins.
Food Allergy vs. Food Intolerance: A Crucial Distinction
Before diving deeper into the glyphosate debate, it is essential to distinguish between a food allergy and a food intolerance. These terms are often used interchangeably, but they represent very different bodily processes.
Food Allergy (IgE-mediated)
A food allergy is a rapid, often severe reaction by the immune system. It usually involves IgE antibodies and can cause symptoms like hives, swelling of the lips or throat, and in the most severe cases, anaphylaxis.
Safety Warning: If you or someone else experiences swelling of the face, difficulty breathing, or a sudden collapse after eating, this is a medical emergency. You must call 999 or go to A&E immediately. Intolerance testing is not appropriate for these scenarios.
Food Intolerance (IgG-mediated)
A food intolerance is typically a delayed reaction. It is often linked to the digestive system and may involve IgG antibodies. Symptoms like bloating, migraines, or joint pain might not appear for 24 to 48 hours after eating the trigger food. This "delay" is what makes food intolerances so difficult to identify without a structured approach.
At Smartblood, we focus on helping people manage these delayed food intolerances. Our testing is designed to help you identify which foods your body might be reacting to, allowing you to create a targeted plan with your GP or a nutritional professional.
How Glyphosate May Disrupt the Gut Microbiome
The health of our gut is largely determined by the diversity and balance of the bacteria living there. When this balance is thrown off—a state known as "dysbiosis"—it can lead to a host of health issues.
Research into glyphosate's effect on bacteria suggests that not all microbes respond to the chemical in the same way. Some "pathogenic" or harmful bacteria (like certain strains of Salmonella or Clostridia) appear to be quite resistant to glyphosate. On the other hand, many "friendly" bacteria (like Lactobacillus and Bifidobacterium) seem to be more sensitive to it.
When we consume foods with glyphosate residues, we may be inadvertently suppressing our beneficial bacteria while allowing the more troublesome ones to thrive. This imbalance can lead to:
- Increased Intestinal Permeability: Often referred to as "leaky gut," this is where the lining of the intestine becomes compromised, allowing undigested food particles and toxins to leak into the bloodstream.
- Inflammation: A dysbiotic gut is often a chronically inflamed gut. This inflammation can make the digestive system hypersensitive to foods that would otherwise be harmless.
- Reduced Enzyme Activity: Some studies have shown that glyphosate may inhibit the activity of enzymes like Cytochrome P450, which are crucial for detoxifying environmental toxins and activating vitamins like Vitamin D.
If your gut is already struggling with these issues, the introduction of a complex protein like gluten can be the "final straw" that triggers a symptomatic flare-up.
The Smartblood Method: A Phased Approach to Wellness
If you suspect that your symptoms are linked to wheat or glyphosate exposure, it can be tempting to jump straight into expensive supplements or restrictive diets. However, at Smartblood, we advocate for a more measured and clinically responsible path.
Step 1: Consult Your GP
Your first stop should always be your GP. It is vital to rule out serious medical conditions such as coeliac disease, inflammatory bowel disease (IBD), or thyroid issues. Coeliac disease, in particular, requires a strict, lifelong gluten-free diet and cannot be diagnosed through an intolerance test. If you are experiencing weight gain or skin problems, there could be several underlying factors your doctor needs to check first.
Step 2: The Elimination Approach
Once medical conditions have been ruled out, the most effective way to identify triggers is through a structured elimination diet. This involves removing suspected trigger foods for a period (usually 2–4 weeks) and then carefully reintroducing them while tracking your symptoms.
To help with this, we provide a free elimination diet chart. This tool allows you to log what you eat and how you feel, making it much easier to spot patterns. If you find that organic, glyphosate-free sourdough bread doesn't cause a reaction, but standard supermarket bread does, you've gained a very valuable piece of information.
Step 3: Targeted Testing
If you find the elimination process overwhelming or you are still stuck despite your best efforts, this is where a Smartblood Food Intolerance Test can provide a "snapshot" of your current sensitivities.
Our test measures IgG antibody reactions to 260 different foods and drinks. It isn't a medical diagnosis, but rather a guide to help you prioritise which foods to eliminate and reintroduce during your trials. By seeing which categories—such as dairy or yeast—show the highest reactivity, you can stop the guesswork and start a more targeted plan.
The Organic vs. Conventional Wheat Trial
One interesting way to test the "glyphosate hypothesis" for yourself is to experiment with the type of wheat you consume.
In some clinical observations, individuals who report a sensitivity to wheat find that they can tolerate organic wheat much better. In organic farming, the use of glyphosate is strictly prohibited. If you find that you can eat organic pasta without the usual bloating, it suggests that the protein itself might not be the primary culprit—it may be the chemical residues or the modern processing methods used in conventional wheat.
However, it is important to remember that everyone’s body is different. For some, the problem really is the gluten protein, regardless of how it was grown. This is why a personalised approach is so important. You can read more about how this works on our How it Works page.
Understanding Your Test Results
If you decide to take a Smartblood Food Intolerance Test, your results will be presented on a clear 0–5 reactivity scale.
- 0–2 (Normal/Low): These foods are unlikely to be causing significant IgG-mediated issues.
- 3 (Borderline): These may be worth watching or reducing if your symptoms are persistent.
- 4–5 (High Reactivity): These are the primary candidates for a temporary elimination.
It is important to understand that IgG testing is a debated area of science. We do not use these results to "diagnose" an illness. Instead, we frame them as a practical tool for unmasking food sensitivities. The goal is always to eventually reintroduce as many foods as possible, maintaining a diverse and healthy diet while avoiding the specific triggers that cause you discomfort.
Practical Steps to Reduce Glyphosate Exposure
While it is nearly impossible to avoid glyphosate entirely in the modern world, there are several steps you can take to reduce your "toxic load" and support your gut health:
- Choose Organic Where Possible: Focus your budget on organic versions of the "highest risk" crops, such as wheat, oats, and soy.
- Wash Produce Thoroughly: While glyphosate is a systemic herbicide (meaning it is inside the plant), washing fruit and vegetables can still help remove surface residues of various pesticides.
- Support Your Gut Flora: Consider incorporating fermented foods like sauerkraut or kefir into your diet to help bolster your beneficial bacteria.
- Diversify Your Grains: Instead of relying solely on wheat, try ancient grains like spelt or einkorn (which are often processed less intensely) or naturally gluten-free options like quinoa and buckwheat.
- Listen to Your Body: Use a symptom tracker to see if there are specific brands or types of food that consistently trigger your fatigue.
By taking these steps, you are not just avoiding a chemical; you are actively creating an environment where your digestive system can heal and thrive.
The Role of Scientific Research
At Smartblood, we are committed to being transparent about the science behind what we do. The link between glyphosate, the microbiome, and food intolerance is an evolving field. While the animal studies and correlations are significant, we still need more long-term human trials to draw definitive conclusions.
We encourage our customers to look at the available data themselves. You can find a range of relevant papers on our Scientific Studies hub. For example, studies on food elimination based on IgG antibodies have shown promising results for those with IBS, providing a foundation for why this approach can be so helpful.
Our Our Story page explains how we started this journey—to provide people with clear, accessible information that they can use to take control of their own health. We aren't here to replace your doctor; we are here to provide the extra data that helps you have more productive conversations with them.
Conclusion
The question of whether glyphosate causes gluten intolerance is at the heart of a much larger conversation about how we grow our food and how it affects our bodies. While the science is still developing, the evidence suggesting that glyphosate can disrupt our gut bacteria and increase inflammation is too significant to ignore.
For many of our customers at Smartblood, identifying a sensitivity to wheat is the first step toward reclaiming their energy and comfort. However, we always stress that this should be done responsibly.
Start by speaking with your GP to rule out coeliac disease. Use our free elimination diet chart to track your reactions to different types of wheat, including organic options. And if you find yourself needing more clarity, consider the Smartblood Food Intolerance Test.
Our home finger-prick kit analyzes your reaction to 260 foods and drinks for £179.00, providing you with a detailed report within three working days of the lab receiving your sample. This "snapshot" can be the key to moving past the guesswork and finally understanding what your body is trying to tell you. If you are ready to take the next step, you can find the test on our website, and don't forget that the code ACTION may be available for a 25% discount.
If you have any further questions about the process or how the test might work for you, please don't hesitate to visit our FAQ or Contact us directly. Your journey to better health starts with a single, informed step.
FAQ
Does glyphosate stay in the body for a long time?
Glyphosate is generally considered to be excreted relatively quickly through urine and faeces. However, the concern is less about long-term storage in the body and more about the "constant exposure" we face through a modern diet. If we are consuming residues daily, our gut bacteria may never have a chance to fully recover from the disruption.
Can an intolerance test tell if I'm reacting to glyphosate specifically?
No, the Smartblood Food Intolerance Test measures your body's IgG antibody response to specific food proteins (like wheat or rye). It does not test for chemicals like glyphosate. However, if you show a high reactivity to wheat, it may be an indicator that your gut is struggling with the way that wheat is grown or processed.
Is organic wheat always safe for someone with a gluten intolerance?
Not necessarily. While many people find they tolerate organic wheat better, some individuals are genuinely sensitive to the gluten protein itself. If your body has developed a strong immune response to gluten, even the cleanest organic sourdough may still trigger symptoms. This is why testing and structured elimination are so helpful.
Why does Smartblood recommend seeing a GP first?
It is vital to rule out coeliac disease, which is an autoimmune condition, not an intolerance. Eating gluten when you have coeliac disease can cause permanent damage to the small intestine. Furthermore, symptoms like bloating and fatigue can be caused by many things—from anaemia to thyroid issues—that require medical diagnosis and treatment.
Medical Disclaimer: The information in this article is for informational purposes only and does not constitute medical advice. You should always consult your GP or a qualified healthcare professional before making significant changes to your diet or if you are concerned about your health. Smartblood testing is not an allergy test and does not diagnose coeliac disease or any other medical condition. If you experience symptoms of a severe allergic reaction, such as swelling of the lips, face, or throat, or difficulty breathing, seek urgent medical help immediately (call 999 or attend A&E).
