This review article focuses on the use of breath tests in the field of bariatrics and obesitology. The first part of the review is an introduction to breath test problematics with a focus on their use in bariatrics. The second part provides a brief history of breath testing. Part three describes how breath tests are used for monitoring certain processes in various organs and various substances in exhaled air and how the results are analyzed and evaluated. The last part covers studies that described the use of breath tests for monitoring patients that underwent bariatric treatments. Although the number of relevant studies is small, this review could promote the future use of breath testing in the context of bariatric treatments.

Department of Epidemiology and Public Health Faculty of Medicine University of Ostrava Syllabova 19 703 00 Ostrava Czech Republic

Department of Human Movement Studies Faculty of Education University of Ostrava Fráni Šrámka 3 709 00 Ostrava Czech Republic

Department of Physiology and Pathophysiology Faculty of Medicine University of Ostrava Syllabova 19 703 00 Ostrava Czech Republic

Department of Surgery Vítkovice Hospital Zalužanského 1192 15 703 00 Ostrava Czech Republic

Department of Surgical Disciplines Faculty of Medicine University of Ostrava Syllabova 19 703 00 Ostrava Czech Republic

Institute of Laboratory Medicine Faculty of Medicine University of Ostrava Syllabova 19 703 00 Ostrava Czech Republic

Institute of Laboratory Medicine University Hospital Ostrava 17 Listopadu 1790 5 708 52 Ostrava Czech Republic

Institute of Medical Biochemistry and Laboratory Diagnostics 1st Faculty of Medicine Charles University Prague Kateřinská 1660 32 121 08 Prague Czech Republic

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