Why Americans and Europeans Experience Wheat Differently

The modern debate over gluten reflects a complicated relationship among wheat genetics, industrial food processing, fermentation, digestive health, and changing dietary habits. American and European manufacturers use different formulations and production methods, but neither continent represents a uniform approach to bread or pasta. Research shows that fermentation can alter wheat carbohydrates, that manufacturing methods influence pasta protein properties, and that some symptoms attributed to gluten may involve other wheat components. It has not established that modern American wheat processing is responsible for higher rates of celiac disease or that European wheat is inherently safer. For restaurants and consumers, the most useful approach is to value transparent sourcing, distinguish culinary quality from medical claims, and provide genuinely gluten-free options when necessary. The science continues to develop. In the meantime, thoughtful food preparation remains a remarkably sensible place to begin.

There is a particular kind of American traveler who spends years avoiding bread, arrives in Italy, eats pasta for six consecutive days, and returns home convinced that something has gone terribly wrong with American wheat. The bread was wonderful. The pasta was wonderful. Their stomach, which normally regards a sandwich as a personal insult, behaved itself. Naturally, the conclusion is that European gluten must be different. Perhaps it is less processed, less concentrated, or simply more civilized. There are plenty of explanations available, many delivered with extraordinary confidence by people who have never studied wheat chemistry. Unfortunately, the science is less accommodating. European wheat contains gluten, American wheat contains gluten, and neither has any particular interest in respecting national borders. The more useful question concerns what happens to wheat between the field and the plate, and whether those differences might explain why certain people tolerate some foods better than others.

That question has become increasingly relevant as gluten-free diets have moved from a medical necessity for a relatively small population into a major category of American food culture. Supermarkets devote entire aisles to products marketed as gluten-free, while restaurants face growing demand for alternatives to traditional wheat-based dishes. Some customers have diagnosed celiac disease or wheat allergy. Others experience uncomfortable symptoms after eating wheat without having either condition. Still others have eliminated gluten because they believe modern wheat is inherently unhealthy. These distinctions matter considerably. They involve different biological mechanisms, different levels of medical risk, and different questions about food processing. Grouping them together under the convenient heading of gluten intolerance has made the subject easier to market and rather harder to understand.

How Wheat Became an Industrial Ingredient

For most of its agricultural history, wheat was grown, milled, and transformed into food through processes shaped by local conditions. Flour composition depended on available varieties, milling technology, and the preferences of individual bakers. Bread production relied on fermentation, while pasta-making traditions developed around the characteristics of durum wheat and the practical demands of preserving food. These processes were neither universally superior nor particularly romantic to the people performing them. They were simply how food was made before mechanized production allowed manufacturers to achieve similar results with greater speed, consistency, and scale.

The transformation accelerated during the nineteenth and twentieth centuries as industrial milling, commercial yeast, mechanical mixing, and centralized food production altered the relationship between grain and finished food. Manufacturers increasingly selected wheat varieties and flour specifications according to their performance in particular applications. Strong bread flour needed to develop an elastic gluten network capable of retaining gas. Softer wheat varieties were useful for cakes and delicate pastries. Durum wheat, with its distinct protein characteristics, became central to dried pasta production. The resulting food system offered remarkable consistency, but it also encouraged the development of formulations designed around the requirements of manufacturing rather than the methods traditionally used in smaller kitchens.

Commercial bread provides a particularly revealing example. A conventional loaf may contain flour, water, yeast, and salt, but industrial formulations can also include added wheat gluten, fats, sweeteners, emulsifiers, enzymes, and preservatives. These ingredients have specific functions. Added gluten can strengthen dough, emulsifiers can improve softness and texture, and preservatives can extend shelf life. Manufacturers use them because they help produce bread that behaves predictably during manufacturing, distribution, and storage. A loaf that remains soft after several days in a plastic bag is a considerable commercial achievement. Whether it resembles the bread someone intended to make in the first place is a separate matter.

The economic incentives are understandable. Traditional fermentation requires time, space, and attention, all of which cost money. Large-scale food manufacturers must also account for labor, equipment capacity, transportation, product consistency, and the possibility that unsold bread will eventually become something less appealing than bread. Accelerating production and extending shelf life can reduce waste and make food more affordable. These are legitimate advantages, although they also help explain why modern commercial bread can differ so substantially from a loaf produced through slower methods. The process is often designed to deliver predictable results as efficiently as possible. Developing complex flavor through fermentation is not always the manufacturer's first concern.

Europe Was Not Innocent

The popular comparison between American industrial bread and European traditional bread encounters an unfortunate historical problem. One of the most influential developments in rapid commercial breadmaking was invented in Britain. The Chorleywood Bread Process, developed in 1961 and adopted widely during the following decade, used intensive mechanical mixing to develop dough without the lengthy bulk fermentation required by more traditional methods. The technique reduced production time and allowed manufacturers to use a greater proportion of domestically grown wheat. It was an important technological achievement, particularly for an industry interested in producing large quantities of affordable bread.¹

The process also demonstrates why geographic generalizations are so unreliable. Europe has industrial bakeries, packaged sandwich bread, dough improvers, and large commercial food manufacturers. America has independent bakeries producing naturally fermented sourdough, carefully milled flour, and excellent artisan bread. The relevant differences are frequently found between individual producers rather than entire continents. A factory-produced loaf purchased in London may have more in common with its American supermarket equivalent than with bread made by a small bakery in rural Italy. Geography can influence culinary traditions and regulations, but it does not guarantee a particular manufacturing method.

What does distinguish some traditional breadmaking is the use of extended fermentation. During fermentation, yeasts and bacteria metabolize components of the dough, producing compounds that influence flavor, acidity, structure, and texture. Sourdough cultures contain communities of microorganisms whose activity can alter certain carbohydrates and wheat proteins. The precise effects depend on the organisms involved, the flour, temperature, hydration, and length of fermentation. The process is chemically interesting and culinarily valuable. Whether it produces a loaf that is easier for a particular person to digest requires a separate investigation.

The Gluten Question Is More Complicated Than It Appears

Gluten is a group of proteins found in wheat and related grains. Its principal wheat components, gliadins and glutenins, work together to give dough its elasticity and extensibility. Without them, traditional bread would struggle to retain the gas necessary for its familiar structure, and wheat pasta would behave quite differently during cooking. Gluten is therefore responsible for many of the characteristics people appreciate in bread and pasta. It is also responsible for triggering an autoimmune response in individuals with celiac disease. These two observations are compatible, even if the contemporary conversation about gluten sometimes treats them as mutually exclusive.

Celiac disease occurs when gluten exposure triggers an inappropriate immune response in genetically susceptible individuals, potentially damaging the lining of the small intestine and impairing nutrient absorption. It can cause digestive symptoms, anemia, nutritional deficiencies, and complications involving other organ systems. Wheat allergy is different, involving allergic responses to wheat proteins that may produce immediate reactions, including anaphylaxis. Non-celiac wheat sensitivity is different again. People with this condition report symptoms associated with wheat consumption despite testing that does not establish celiac disease or wheat allergy. Its underlying mechanisms remain incompletely understood, and researchers have not identified a universally reliable diagnostic biomarker.²

This distinction is essential when discussing traditional foods. Someone with celiac disease cannot safely substitute ordinary Italian pasta for American pasta because the Italian version was made with greater care. Nor does sourdough fermentation make conventional wheat bread safe for that person. Wheat proteins capable of triggering the autoimmune response remain present unless a product has undergone specialized processing and satisfies validated gluten-free requirements. The origin of the wheat, the reputation of the bakery, and the sincerity of the person preparing it do not change the diagnosis. There are occasions when culinary tradition deserves deference. Autoimmune disease is not one of them.

Did We Breed Wheat Into Something Different?

One frequently repeated explanation for rising gluten-related complaints is that modern wheat has been bred to contain dramatically more gluten than historical varieties. It is an appealing theory because it offers a simple villain and requires relatively little explanation. Unfortunately, the available research does not consistently support it. In 2013, American cereal chemist Donald Kasarda examined historical data concerning the protein content of U.S. wheat and found no convincing evidence that twentieth-century breeding had systematically increased its overall gluten-related protein concentration. He did identify other potentially relevant changes, including increased use of concentrated vital wheat gluten in manufactured foods.³

A 2020 German study reached similarly inconvenient conclusions. Researchers examined sixty winter wheat cultivars introduced between 1891 and 2010, evaluating differences in agricultural performance and protein composition. Modern cultivars generally produced greater yields, but their total protein and gliadin concentrations tended to decrease, while glutenin proportions increased. Overall gluten content did not rise consistently, and the investigators found no evidence that modern breeding had increased the measured immunostimulatory potential of the wheat proteins. Growing conditions also influenced composition, sometimes more strongly than the age of the variety.⁴

These findings do not mean every wheat variety is nutritionally identical, or that breeding has had no effect on gluten composition. Individual proteins vary, and the structure of gluten matters as much as its total quantity for certain applications. But the assumption that ancient wheat must contain less gluten is unreliable. Einkorn, emmer, spelt, and other historical varieties may contain substantial gluten and remain unsuitable for people with celiac disease. Their appeal may lie in flavor, agronomic characteristics, or culinary tradition rather than an inherent medical advantage. A grain does not become harmless simply because someone calls it ancient.

There is, however, a meaningful distinction between the gluten naturally present in flour and the concentrated gluten sometimes added during manufacturing. Vital wheat gluten can strengthen dough, increase protein content, and help manufacturers achieve particular textures. Its use changes the composition of the finished food independently of changes in wheat breeding. Kasarda identified this as an exposure question deserving further investigation, although he did not establish that added gluten caused increasing celiac disease prevalence. The difference between a plausible research question and a proven explanation is considerable. Food marketing tends to prefer the second, particularly when only the first is available.

What Fermentation Can Actually Change

One of the more interesting discoveries in modern wheat research concerns fructans, a group of fermentable carbohydrates present in wheat. Fructans belong to the FODMAP family, which includes carbohydrates that may provoke bloating, abdominal discomfort, and changes in bowel habits in susceptible individuals, particularly those with irritable bowel syndrome. They are not gluten proteins. This creates a potentially important explanation for why some people associate wheat with digestive symptoms even when gluten itself is not demonstrably responsible.⁵

In a 2018 randomized, double-blind crossover study published in Gastroenterology, researchers examined fifty-nine participants who reported non-celiac gluten sensitivity. The participants received blinded challenges containing gluten, fructans, or placebo. Fructans produced greater overall gastrointestinal symptom scores than gluten, while gluten did not produce significantly different scores from placebo in the overall analysis. The study did not establish that fructans explain every case of wheat sensitivity, but it demonstrated how easily a reaction attributed to gluten may involve another component of the same food.⁵

Fermentation can influence these carbohydrates. In a 2017 pilot study, researchers compared bread made with extended sourdough fermentation against conventionally yeast-fermented wheat bread among participants with wheat-related digestive complaints. The sourdough bread contained substantially fewer FODMAPs and showed changes in certain other wheat components. Yet participants did not experience significantly better gastrointestinal outcomes during the trial.⁶ The laboratory findings were real. The expected clinical benefit was not demonstrated. It is a useful reminder that food chemistry and human digestion do not always cooperate with a compelling culinary theory.

Still, the research provides a legitimate reason to investigate fermentation rather than dismiss it as an antiquated inconvenience. Different starters, temperatures, and fermentation schedules can produce different biochemical results. Long fermentation contributes to the development of flavor and texture, and particular methods may reduce compounds associated with symptoms in some individuals. But there is no reliable rule that a twelve-hour loaf is healthier than a four-hour loaf, much less that a bread described as sourdough will be tolerated by everyone who struggles with wheat. The method matters, and so does the person eating the result.

The Pasta Problem

Pasta introduces another set of manufacturing questions, and the differences between Italian and American production are worth examining independently of bread. Traditional Italian dried pasta is generally made from durum-wheat semolina and water, shaped through extrusion or other forming methods, and dried under controlled conditions. Italian regulations establish specific requirements for ordinary dried durum-wheat pasta, including the types of milling products used and their composition. American standards permit a broader selection of flour ingredients and certain optional additions in standardized macaroni products. These differences are real, although they do not mean every American pasta contains additives or that every Italian producer works according to nineteenth-century methods.⁷

Among premium Italian producers, bronze-die extrusion and slow drying are frequently emphasized. Bronze dies can create a rougher pasta surface, which helps sauce adhere and contributes to the finished dish's texture. Drying temperature influences protein structure, moisture removal, and cooking characteristics. Some producers prefer lower temperatures and longer drying periods because of the qualities they achieve in the finished pasta. Others use higher-temperature industrial systems designed to increase efficiency and control production. Both approaches exist in Italy, and excellent pasta can be produced through more than one method.

The scientific question is whether these processes meaningfully affect digestibility. A 2024 study published in Food Research International compared traditionally produced durum-wheat pasta with pasta manufactured through industrial methods. Researchers examined the effects of wheat variety, milling, extrusion, and drying on protein properties and laboratory digestibility. The traditionally produced pasta demonstrated greater in vitro protein digestibility, but the largest contributions came from wheat variety and milling, followed by extrusion. Drying accounted for only a small portion of the observed difference. The older wheat variety used in the study actually contained more protein than the modern comparison, yet its pasta performed differently in laboratory digestion experiments.⁸

This complicates the fashionable insistence that slow drying alone explains the superiority of traditional pasta. It may influence texture and other desirable qualities, but its contribution to the measured digestibility difference in that experiment was modest. More importantly, laboratory protein digestion is not equivalent to a clinical trial demonstrating fewer symptoms in people with wheat sensitivity. A pasta can be beautifully made, technically distinctive, and worth choosing without being promoted as a medical intervention. There is no shortage of good reasons to prefer carefully produced pasta. Inventing another one seems unnecessary.

Why People Feel Better Eating in Europe

The American traveler who suddenly tolerates bread and pasta abroad presents an interesting question, but one that cannot be answered by looking at a passport. The foods may genuinely differ. A person accustomed to commercial sandwich bread might eat naturally fermented bread during a trip, or replace heavily formulated convenience meals with simpler preparations. Wheat varieties, fermentation methods, serving sizes, sauces, and other ingredients can all change. So can physical activity, stress, sleep, meal timing, and the amount of food consumed. Any of these factors may influence digestive symptoms, particularly among people with irritable bowel syndrome or other gastrointestinal sensitivities.

There is also an important distinction between feeling better after eating wheat and demonstrating that the gluten itself has become more tolerable. Someone who reacts primarily to fructans might respond differently to a product with lower fermentable carbohydrate content. Another person might notice no change at all. Someone with celiac disease remains at risk of intestinal injury even if a particular meal produces no obvious symptoms. Personal experience can suggest useful research questions, but it cannot identify a biological mechanism on its own. Otherwise, we would have solved most of nutritional science somewhere between the second glass of wine and dessert.

The available population evidence also challenges the assumption that Europe has somehow escaped gluten-related disease. A 2026 systematic review and meta-analysis involving 87 studies and more than 394,000 participants estimated global celiac seroprevalence at 1.5 percent and biopsy-confirmed prevalence at approximately 0.8 percent. Seroprevalence was highest in Oceania and North America, while biopsy-confirmed prevalence was highest in Europe and South America. Differences in testing and diagnostic practices complicate direct comparisons, but the findings offer little support for a continent-wide protective effect of European wheat.⁹

What We Believe Belongs on the Plate

At Apericena, our interest in carefully sourced pasta has more to do with what producers actually do than with grand declarations about European superiority. We value organic ingredients, traditional techniques, bronze-die extrusion, and thoughtful drying practices because they influence the quality and character of the food. We also offer gluten-free alternatives because celiac disease and other wheat-related conditions deserve to be taken seriously. The distinction between naturally gluten-containing pasta and a verified gluten-free option is an important one, particularly in a kitchen where preparation methods and cross-contact require attention.

That philosophy extends beyond pasta. Food production involves decisions about ingredients, processing, cost, and consistency, and those decisions deserve scrutiny. Traditional methods can produce exceptional results, but their age does not automatically establish superior health outcomes. Modern technology can improve food quality and safety, even when it is also used to make products cheaper and faster. The worthwhile question is what a particular method accomplishes, and whether its claimed benefits hold up under examination. There is very little reason to choose between respecting culinary tradition and understanding the science behind it.

The most useful lesson from the gluten debate is that wheat deserves a more careful conversation than the one it usually receives. Celiac disease is a serious autoimmune condition. Wheat allergy is an established medical risk. Non-celiac wheat sensitivity remains an active area of research, with evidence pointing toward several possible triggers. Meanwhile, industrial processing has undoubtedly changed many of the foods Americans eat, although its relationship to rising gluten-related diagnoses is far from settled. The challenge is to distinguish meaningful differences in production from attractive explanations that happen to be unsupported.

Good bread requires good ingredients and thoughtful preparation. Good pasta deserves the same consideration. Neither needs to be accompanied by promises of improved immunity, miraculous digestion, or freedom from every digestive complaint known to medicine. We would prefer to know where our food comes from, understand how it was made, and serve something worth eating. If the result happens to be a beautiful plate of pasta, that seems a perfectly satisfactory achievement.

References

1. Federation of Bakers. (n.d.). History of bread in the twentieth century. https://www.fob.uk.com/about-the-bread-industry/history-of-bread-antiquity/history-bread-20th-century/

2. Amakye, D., & Clarke, K. (2026). Celiac disease: A comprehensive review of epidemiology, pathogenesis, and therapeutic strategies. Digestive Diseases and Sciences, 71, 4414–4425. https://doi.org/10.1007/s10620-026-09860-3

3. Kasarda, D. D. (2013). Can an increase in celiac disease be attributed to an increase in the gluten content of wheat as a consequence of wheat breeding? Journal of Agricultural and Food Chemistry, 61(6), 1155–1159. https://doi.org/10.1021/jf305122s

4. Pronin, D., Börner, A., Weber, H., & Scherf, K. A. (2020). Wheat (Triticum aestivum L.) breeding from 1891 to 2010 contributed to increasing yield and glutenin contents but decreasing protein and gliadin contents. Journal of Agricultural and Food Chemistry, 68(46), 13247–13256. https://doi.org/10.1021/acs.jafc.0c02815

5. Skodje, G. I., Sarna, V. K., Minelle, I. H., et al. (2018). Fructan, rather than gluten, induces symptoms in patients with self-reported non-celiac gluten sensitivity. Gastroenterology, 154(3), 529–539.e2. https://doi.org/10.1053/j.gastro.2017.10.040

6. Pilot study: Comparison of sourdough wheat bread and yeast-fermented wheat bread in individuals with wheat sensitivity and irritable bowel syndrome. (2017). Nutrients, 9(11), 1215. https://pubmed.ncbi.nlm.nih.gov/29113045/

7. Republic of Italy. (2001, as amended). Decreto del Presidente della Repubblica 9 febbraio 2001, n. 187. United States Food and Drug Administration. 21 CFR §139.110, Macaroni products. https://www.law.cornell.edu/cfr/text/21/139.110

8. Desclaux, D., Canaguier, E., Avit, V., et al. (2024). Peasant vs. industrial durum wheat pasta: Impact of each processing step on protein solubility and digestibility. Food Research International, 178, 113937. https://doi.org/10.1016/j.foodres.2024.113937

9. Karimzadhagh, S., Abbaspour, E., Shamsi, P., et al. (2026). Global prevalence of celiac disease and clinical characteristics in the general population: A systematic review and meta-analysis. Gastroenterology. Advance online publication. https://doi.org/10.1053/j.gastro.2026.07.028