The role of small intestinal bacterial overgrowth in food intolerances

Food intolerances are increasingly common in populations of developed countries. One of the important factors in the etiopathogenesis of this phenomenon is disorders of the bacterial composition of the human gastrointestinal tract. The development of civilization as well as the increasing production of processed food contribute to the increased incidence of diseases of the digestive system, such as small intestinal bacterial overgrowth (SIBO) and food intolerances. These conditions may occur separately or coexist in one patient. The incidence of food intolerances and also allergies, continues to increase. It is estimated that factors such as stress, inadequate lifestyle, excessive consumption of processed, modified foods may contribute to this phenomenon. The article presents the relationship between bacterial overgrowth in the small intestine and the effect on various aspects of food intolerances, both in the context of diagnosis and the course of these diseases on the basis of recent research. The nature od low-FODMAP diet was presented, as well as its effect on the clinical course of SIBO and food intolerances.