Table of Contents
- Introduction
- The Rising Tide of Gluten Sensitivity
- Is Our Wheat Different Than It Used To Be?
- The Impact of Industrial Baking Methods
- Understanding the Clinical Spectrum: Allergy vs. Intolerance
- Why Our Modern Lifestyle Plays a Role
- The Smartblood Method: A Phased Approach to Wellness
- What Does an IgG Test Actually Tell You?
- Scenarios: When Gluten Might Not Be the Only Culprit
- Living With Gluten Intolerance in the UK
- Conclusion
- FAQ
Introduction
Have you ever found yourself sitting at a dinner table, looking at a bread basket, and wondering why so many of your friends—or perhaps you yourself—suddenly seem to struggle with it? It is a common observation in modern Britain: a few decades ago, "gluten-free" was a niche term rarely seen outside specialist health shops. Today, it is a staple of every supermarket aisle and restaurant menu from Cornwall to the Highlands.
This shift leads many to ask a pressing question: is gluten intolerance becoming more common, or are we simply better at spotting it? For someone living with persistent bloating, "brain fog," or unpredictable digestive habits, the answer is more than just academic. It is about understanding why your body feels like it is at war with a common staple of the human diet.
In this article, we will explore the factors driving the rise in gluten-related issues, from changes in how we grow wheat to the industrial methods used to bake our daily bread. We will also look at the different ways our bodies react to gluten—distinguishing between serious autoimmune conditions and the more common, though often frustrating, food intolerances.
At Smartblood, we believe that navigating these symptoms requires a calm, clinically responsible approach. We advocate for a phased journey: first consulting your GP to rule out underlying medical conditions, followed by a structured elimination diet. Only then, if clarity remains elusive, do we suggest using a Smartblood Food Intolerance Test to provide a snapshot of your body's unique IgG reactions.
The Rising Tide of Gluten Sensitivity
If it feels like everyone is talking about gluten, that is because the numbers back it up. Clinical data from the UK and beyond suggests that the incidence of gluten-related disorders is indeed on the rise. While coeliac disease—a serious autoimmune condition—affects approximately 1% of the population, a much larger group of people identifies as having Non-Coeliac Gluten Sensitivity (NCGS), often referred to as gluten intolerance.
Some estimates suggest that up to 10% of the population may experience adverse reactions to wheat or gluten. This isn't just a trend or a dietary fad; for many, the "mystery symptoms" of lethargy and digestive discomfort are very real. But why now? Humans have been eating wheat for roughly 10,000 years. The sudden spike in the last 50 to 70 years suggests that something in our environment, our food, or our biology has shifted.
At Smartblood, our story began because we saw more and more people struggling to find answers for these exact symptoms. They weren't "sick" in the traditional sense, but they certainly weren't thriving. Understanding whether is gluten intolerance becoming more common requires us to look at the intersection of modern agriculture and human physiology.
Is Our Wheat Different Than It Used To Be?
One of the most frequent theories for the rise in intolerance is that modern wheat is fundamentally different from what our ancestors ate. Scientists have spent decades breeding wheat to be more resilient, easier to harvest, and higher in yield.
Research, including studies from the Technical University of Munich, has looked at wheat varieties spanning the last 120 years. Interestingly, the total gluten content hasn't necessarily increased as much as people think. However, the composition of that gluten has changed.
Gluten is made of two main proteins: gliadin and glutenin. Gliadin is the component often linked to immune reactions. Some studies show that while total protein in wheat has decreased slightly due to high-yield farming, the ratio of certain "critically viewed" gliadins has shifted. Even a small change in protein structure can change how the human gut recognises and processes a food.
Furthermore, modern wheat is often processed in ways that make it more "immunogenic." For instance, gluten and wheat are now found as additives in everything from soy sauce to salad dressings and even cosmetics. This constant, low-level exposure to gluten in non-traditional forms may be overwhelming the digestive systems of those who are already predisposed to sensitivity.
The Impact of Industrial Baking Methods
The way we turn wheat into bread has also undergone a radical transformation. Historically, bread was made using long fermentation processes—think of a traditional sourdough or a long-yeasted loaf. These processes could take anywhere from 8 to 24 hours.
During this time, the yeasts and bacteria "pre-digest" the flour. They break down complex proteins (like gluten) and carbohydrates (like fructans) that are otherwise difficult for humans to handle. By the time the bread was eaten, it was much gentler on the stomach.
In the 1960s, the "Chorleywood Bread Process" was developed in the UK. This method uses high-speed mixers and chemical additives to reduce the fermentation time from hours to minutes. While this made bread cheaper and more available, it meant the gluten remained entirely intact and "un-broken." For many people, this "no-time dough" is simply too tough for the gut to manage, leading to the rise in reports of IBS and bloating.
Key Takeaway: If you find you can eat bread in France or Italy, or a high-quality sourdough from a local artisan bakery, but you struggle with supermarket sliced loaves, the issue might not be gluten itself, but the lack of fermentation in modern industrial baking.
Understanding the Clinical Spectrum: Allergy vs. Intolerance
When discussing if gluten intolerance is becoming more common, we must be very careful with our terminology. Not all reactions to wheat are the same.
1. Wheat Allergy (IgE-Mediated)
This is a classic food allergy. The immune system produces IgE antibodies, leading to a rapid and sometimes severe reaction. Symptoms usually appear within minutes and can include hives, vomiting, or swelling.
Important Safety Note: If you or someone you are with experiences swelling of the lips, tongue, or throat, difficulty breathing, wheezing, or a sudden drop in blood pressure, this may be anaphylaxis. Call 999 or go to A&E immediately.
2. Coeliac Disease (Autoimmune)
This is not an allergy or an intolerance. It is a serious autoimmune condition where the body’s immune system attacks its own tissues when gluten is consumed, damaging the lining of the small intestine. This must be diagnosed by a GP via blood tests and, often, a biopsy. You should never stop eating gluten before these tests, as it can cause a false negative.
3. Food Intolerance (IgG-Mediated)
This is what most people mean when they talk about "sensitivity." It is often characterised by a delayed reaction—sometimes appearing up to 72 hours after eating. It is associated with IgG antibodies and results in discomfort rather than an immediate life-threatening situation. It is here that the Smartblood Food Intolerance Test can offer insights for those who have already ruled out more serious conditions.
To learn more about these distinctions, you can read our detailed guide on food allergy vs food intolerance.
Why Our Modern Lifestyle Plays a Role
Beyond the wheat itself, our modern environment may be making our guts more reactive. This is often linked to the "Hygiene Hypothesis"—the idea that our ultra-clean environments mean our immune systems don't get enough "practice" with harmless microbes, causing them to overreact to food proteins instead.
Other factors include:
- Gut Microbiome Imbalance: Stress, antibiotics, and a diet high in processed sugars can disrupt the delicate balance of bacteria in our gut. A healthy microbiome is essential for breaking down gluten proteins; without it, we are more prone to inflammation.
- The Use of Pesticides: Some researchers have pointed to the use of glyphosate in modern farming as a potential trigger that increases intestinal permeability (often called "leaky gut"), making it easier for gluten fragments to enter the bloodstream and trigger an immune response.
- Increased Awareness: We cannot ignore that we are simply talking about health more. People are no longer willing to live with chronic fatigue or a "bad stomach" as a fact of life. This increased scrutiny makes it appear that the condition is more common, though the physiological rise is also likely real.
The Smartblood Method: A Phased Approach to Wellness
If you suspect gluten is behind your symptoms, it is tempting to jump straight to a strict diet or a test. However, we advocate for a more structured, clinically responsible journey. Testing is a tool, not a first resort.
Step 1: See Your GP
Before doing anything else, visit your GP. It is vital to rule out coeliac disease, IBD, anaemia, or thyroid issues. Your doctor provides the essential medical foundation. If you are tested for coeliac disease, remember to keep gluten in your diet until the test is complete.
Step 2: The Elimination Trial
If your GP finds no underlying disease but you are still struggling, try a structured elimination approach. Use our free elimination diet chart to track exactly what you eat and how you feel. For many, a three-week trial without wheat can be incredibly revealing.
Step 3: Targeted Testing
If the elimination diet is inconclusive, or you find it too difficult to guess which of the 260+ foods in your diet might be the trigger, this is where how it works with Smartblood becomes relevant. Our test identifies IgG antibody reactions to 260 foods and drinks, providing a "map" of your current sensitivities.
What Does an IgG Test Actually Tell You?
It is important to be realistic: IgG testing is a subject of debate in the medical community. While some practitioners see it as a valuable clinical marker, others view it more cautiously. At Smartblood, we don't claim our test "diagnoses" an intolerance in the same way a doctor diagnoses a disease.
Instead, we frame it as a tool to guide a structured elimination and reintroduction plan. If your results show a "Level 5" reactivity to wheat, but a "Level 0" to rye, it gives you a specific, evidence-based starting point for your dietary trial. This reduces the guesswork and helps you have more informed conversations with your healthcare provider. You can view some of the scientific studies regarding IgG and its role in dietary management to understand the context of our work.
Scenarios: When Gluten Might Not Be the Only Culprit
Sometimes, what feels like a gluten intolerance is actually a reaction to something else entirely. Consider these real-world scenarios:
- The Delayed Bloat: If you eat a sandwich for lunch but don't feel bloated until the next morning, it is easy to blame your breakfast. However, IgG reactions can be delayed. A food-and-symptom diary might reveal that it was actually the yeast in the bread or a specific preservative that triggered the reaction 24 hours later.
- The "Health Food" Trap: Many people swap bread for gluten-free alternatives packed with pea protein, gums, and thickeners. If your symptoms persist, you might not be reacting to gluten at all, but to the new, highly processed ingredients in your "healthy" substitute.
- The Cross-Reactive Reaction: For some, the body confuses the proteins in dairy with the proteins in wheat. If you have cut out gluten but still feel sluggish and tired, it may be worth investigating other common triggers.
Living With Gluten Intolerance in the UK
The good news is that if you do discover an intolerance, the UK is one of the best places in the world to manage it. Most major supermarkets have extensive "Free From" sections, and many restaurants are now well-versed in cross-contamination risks.
However, the goal of the Smartblood Method isn't necessarily to remove foods forever. It is about "resetting" the system. After a period of elimination—guided by your Smartblood Food Intolerance Test results—many people find they can reintroduce small amounts of high-quality, long-fermented sourdough or ancient grains without the old symptoms returning.
Our objective is to help you move away from "mystery symptoms" and toward a lifestyle where you understand exactly how different foods impact your energy, your skin, and your digestion.
Conclusion
So, is gluten intolerance becoming more common? The evidence suggests that a combination of modern wheat breeding, industrial "fast" baking, and our changing gut microbiomes has created a "perfect storm" for wheat-related sensitivities. While we are certainly more aware of these issues than our grandparents were, the physiological discomfort many people feel is a modern reality.
If you are struggling with persistent symptoms, remember that you don't have to guess. Follow the phased journey:
- Talk to your GP to rule out coeliac disease.
- Experiment with a structured elimination diet.
- If you need more data, consider a professional IgG snapshot.
Taking control of your health starts with understanding your body as a whole, rather than just chasing isolated symptoms. By identifying your unique triggers, you can build a diet that supports your well-being instead of undermining it.
If you are ready to stop the guesswork and gain a clearer picture of your dietary needs, the Smartblood Food Intolerance Test is available for £179.00. Use code ACTION at checkout for a 25% discount (if currently available on-site) and receive your priority results typically within three working days of our lab receiving your sample.
FAQ
1. Is gluten intolerance the same as coeliac disease? No. Coeliac disease is an autoimmune condition where gluten causes the body to attack the small intestine, leading to long-term damage. Gluten intolerance (NCGS) is a sensitivity that causes discomfort (like bloating or fatigue) but does not cause the same type of autoimmune intestinal damage.
2. Can I take a food intolerance test if I suspect I have a wheat allergy? No. If you experience rapid, severe reactions like hives or difficulty breathing, you must see a doctor or an allergist for an IgE allergy test. Our IgG test is designed for delayed food sensitivities and is not suitable for diagnosing life-threatening allergies.
3. Why do I feel fine eating bread in Europe but not in the UK? Many people find this, often because European bakeries may use different wheat varieties or longer, traditional fermentation processes that break down the gluten and fructans more effectively than the industrial methods common in many UK supermarket breads.
4. Will I have to give up gluten forever if my test shows a reaction? Not necessarily. Many people use the test results to guide a temporary elimination (typically 3–6 months). After the gut has had time to "quiet down," some find they can reintroduce certain types of wheat—like sourdough or organic ancient grains—in moderation. For more specific questions, feel free to contact us or check our full FAQ page.
Medical Disclaimer: The information in this article is for educational purposes only and does not constitute medical advice. Always consult your GP or a qualified healthcare professional before making significant changes to your diet, especially if you have underlying health conditions. This test is an IgG food intolerance test; it is not an allergy test and does not diagnose coeliac disease. If you experience symptoms of a severe allergic reaction, such as swelling of the face or difficulty breathing, seek urgent medical care immediately by calling 999 or attending A&E.
