How many people are estimated to be affected by non-celiac disease gluten intolerance or sensitivity globally?

The estimate that around 6% of the global population is affected by non-celiac gluten intolerance or sensitivity is supported by various studies and clinical observations. This figure reflects a significant portion of the population who experience adverse symptoms after consuming gluten-containing foods, but who do not have celiac disease or a wheat allergy.

Non-celiac gluten sensitivity often presents with a range of gastrointestinal and non-gastrointestinal symptoms, leading to the challenge of diagnosis, as it lacks specific biomarkers or test methods like those available for celiac disease. The 6% figure considers clinical evidence and emerging research, indicating that while gluten intolerance is common, it is not as prevalent as celiac disease, which affects a smaller percentage of the population (approximately 1%).

This estimate is also useful for health professionals as it guides dietary recommendations and gluten-free options for individuals reporting symptoms related to gluten consumption. Understanding this prevalence is key in nutritional counseling and can help prevent unnecessary dietary restrictions for those who do not experience gluten-related issues.