16/03/2026
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For thousands of years bread has been one of the most fundamental foods in human history. Archaeological evidence suggests humans have been baking bread for at least 5,000 years, with some early flatbreads dating back even further.
Ancient bread was simple. Grain was ground into flour, mixed with water and salt, and then left to ferment naturally. The fermentation process was slow, often lasting many hours or even days. Natural sourdough cultures containing wild yeast and bacteria would break down parts of the grain before baking.
This slow fermentation had important effects. It partially broke down gluten proteins and complex carbohydrates, making the bread easier for many people to digest. It also reduced compounds such as phytic acid and certain fermentable sugars that can cause digestive discomfort.
Modern bread production looks very different.
Today most commercial bread is produced using industrial processes designed for speed and efficiency. Instead of fermenting for many hours, dough can be prepared and baked in just a couple of hours using commercial baker’s yeast, dough improvers, emulsifiers and preservatives.
The wheat itself has also changed. Modern wheat varieties were bred to produce stronger dough and higher gluten levels, which helps industrial baking processes but may affect digestibility for some people.
Because of these changes, some researchers believe that digestive problems often blamed on gluten may actually be linked to other components of modern wheat or the way bread is produced.
For example, wheat contains carbohydrates known as fructans, part of a group called FODMAPs. These compounds can cause bloating and digestive discomfort in sensitive individuals. Slow fermentation can significantly reduce fructan levels, which may explain why some people tolerate traditional sourdough bread much better than modern industrial bread.
Another topic often discussed is glyphosate, a widely used agricultural herbicide. Some critics suggest that chemical residues could contribute to health problems, although scientific evidence directly linking glyphosate to gluten intolerance remains debated and controversial.
What is clear is that bread today is not the same as bread centuries ago.
Traditional bread was made slowly with simple ingredients and natural fermentation. Modern bread is often produced rapidly with industrial techniques and multiple additives.
For many people the difference may matter. Some who believe they cannot tolerate bread at all report that they can eat long-fermented sourdough or bread made from ancient grains without experiencing the same digestive issues.
So the real question may not be whether humans suddenly became allergic to bread, but whether the bread itself has changed.
