[Food intolerances: more often suspected than confirmed].

Introduction: The perception of food intolerances is widespread, leading to unnecessary dietary restrictions and anxiety, particularly in patients with irritable bowel syndrome. Many self-diagnosed intolerances lack scientific evidence and are often used to explain chronic symptoms. Accurate diagnosis and evidence-based dietary recommendations are crucial to maintaining quality of life and preventing malnutrition. This review explores common food intolerances, including histamine intolerance, additive sensitivity, FODMAP-related issues, and non-celiac wheat sensitivity, providing an evidence-based perspective on their diagnosis and management.