Olejniczak Dominik, Skonieczna Joanna. Orthorexia nervosa in society. Journal of Education, Health and Sport. 2018;8(9):1697-1702 eISNN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.1438807 http://ojs.ukw.edu.pl/index.php/johs/article/view/6124 https://pbn.nauka.gov.pl/sedno-webapp/works/879946 The journal has had 7 points in Ministry of Science and Higher Education parametric evaluation. Part b item 1223 (26/01/2017). 1223 Journal of Education, Health and Sport eissn 2391-8306 7 © The Authors 2018; This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, Poland Open Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author (s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non commercial license Share alike. (http://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited. The authors declare that there is no conflict of interests regarding the publication of this paper. Received: 02.08.2018. Revised: 18.08.2018. Accepted: 15.09.2018. Orthorexia nervosa in society Dominik Olejniczak, Joanna Skonieczna Department of Public Health, Faculty of Health Sciences, Medical University of Warsaw Summary Orthorexia nervosa is a relatively new health problem, which explains limited knowledge about the phenomenon in society. Only a few empirical studies on the course of this disorder, its characteristics and prevalence have been conducted. Therefore, it is not possible to precisely estimate the scale of the phenomenon. Nevertheless, there are tools available to assess the risk of orthorexia, and methods for its treatment. It is necessary to do further research in this disorder and to educate society about its risk factors. This can translate into an improved diagnosis (and thus help to determine the scale of the phenomenon), and support the development of uniform diagnostic criteria. Keywords: Orthorexia nervosa; Nutrition; Health