No bread, healthier?: Gluten is a protein found in wheat, barley and rye, and it is a central component in bread, pasta and many baked goods. For people dealing with celiac disease, it is a harmful substance that triggers an immune response and damages the intestinal lining, and therefore complete avoidance of gluten is a necessary medical treatment. However, in recent years, avoiding gluten is not only the choice of those dealing with celiac – but a popular dietary trend.
The central myth surrounding gluten claims that it causes inflammation, bloating, fatigue and weight gain in everyone. In practice, medical reports emphasize that for about 99% of the population, gluten is a completely harmless protein. The digestive system of most people breaks it down without any difficulty, and it does not cause damage, inflammation or weight gain in itself.
There is another small group, beyond those with celiac disease, defined as having non-celiac gluten sensitivity. Here too, medical reports point to non-specific symptoms such as abdominal pain or fatigue, but without proven damage to the intestine. This is a controversial diagnosis, and estimates speak of only a few percent of the population.
When examining the gluten-free diet in a broader context, it becomes clear that the main problem is not the removal of gluten itself, but what replaces it. Nutritional reports indicate that gluten-free products are often ultra-processed foods. To compensate for the absence of gluten, which gives baked goods their texture and elasticity, manufacturers add higher amounts of sugar, saturated fat and salt.
Nutritional studies have found that gluten-free products sometimes contain more calories than their regular counterparts, and fewer dietary fibers. In addition, they are lower in B vitamins, iron and other minerals that are naturally found in whole grains. The meaning is that a gluten-free diet may paradoxically be less nutritionally balanced.
Weight loss that is sometimes reported after switching to a gluten-free diet is also not necessarily due to the absence of gluten. Physicians note in clinical reports that it is usually a general reduction in processed foods, baked goods and snacks. That is, the weight loss stems from a change in eating patterns, not from removing a specific protein.
Another point that arises in medical reports is the psychological impact. Restrictive diets, especially those based on complete avoidance of a common ingredient, may lead to a rigid relationship with food, anxiety around eating and even harm to quality of life. For those without a real medical need, this is not an insignificant price.
The economic aspect is also significant. Gluten-free products are consistently more expensive, sometimes by dozens of percent, without proven health benefits for most consumers. Reports in the field of public health warn against a misleading message according to which “regular” food is harmful, and “free-from” food is necessarily healthy.
Medical reports are unequivocal in one context: For people with celiac disease, avoiding gluten is critical and health-saving. For everyone else, there is no evidence that a gluten-free diet improves health, prevents diseases or prolongs life. In some cases, it may even lead to nutritional deficiencies and weight gain.
Bottom line, gluten is not a health enemy for most of the population. A gluten-free diet is not a healthier diet by default, and sometimes it is mainly more expensive and more processed. Anyone seeking to improve their health would be better off focusing on a balanced diet, rich in whole grains, vegetables and fruits, and not on removing one component from the plate without a medical need.