Functional disorders of the gastrointestinal tract have recently occupied a niche of the most common diagnoses in gastroenterology, recognized by morphological and physiological abnormalities. Functional disorders of the gastrointestinal tract are a heterogeneous group of disorders, including not only symptoms characteristic of functional dyspepsia (14.6%) in combination with changes in intestinal motility but also irritable bowel syndrome (irritable bowel syndrome, 31.7%) and constipation. These are diseases classified by gastrointestinal manifestations, including one of the following symptoms: impaired motor skills, visceral hypersensitivity, changes in the function of the mucous membrane and the immune system, changes in the intestinal microbiota, and changes in the processing of the central nervous system. According to several studies, mental disorders such as depression and anxiety are often accompanied by functional disorders of the gastrointestinal tract. Thus, it can be concluded that functional disorders of the gastrointestinal tract require a multidisciplinary approach for timely diagnosis and treatment. A recent global Internet survey of the Rome Foundation, in which 127 54 people from 26 countries participated, reported that 32 112 (43%) of the respondents met the criteria for at least one of the manifestations of functional disorders of the gastrointestinal tract. Given the high prevalence of the disease, it is necessary to clearly understand the possibilities of correcting functional disorders of the gastrointestinal tract. This will allow researchers and practitioners to approach the treatment and prevention of this pathology more meaningfully.