Obsessed with Healthy Eating: A Systematic Review of Observational Studies Assessing Orthorexia Nervosa in Patients with Diabetes Mellitus

Orthorexia nervosa (ON) is an unspecified feeding or eating disorder (USFED) characterized by an exaggerated, unhealthy obsession with healthy eating. Τypical eating disorders (EDs) and USFEDs are common among patients with diabetes mellitus (DM), which complicates metabolic control and disease outc...

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Main Authors: Maria G. Grammatikopoulou, Konstantinos Gkiouras, Georgia Polychronidou, Chrysi Kaparounaki, Kalliopi K. Gkouskou, Faidon Magkos, Lorenzo Maria Donini, Aristides G. Eliopoulos, Dimitrios G. Goulis
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Nutrients
Subjects:
Online Access:https://www.mdpi.com/2072-6643/13/11/3823
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author Maria G. Grammatikopoulou
Konstantinos Gkiouras
Georgia Polychronidou
Chrysi Kaparounaki
Kalliopi K. Gkouskou
Faidon Magkos
Lorenzo Maria Donini
Aristides G. Eliopoulos
Dimitrios G. Goulis
author_facet Maria G. Grammatikopoulou
Konstantinos Gkiouras
Georgia Polychronidou
Chrysi Kaparounaki
Kalliopi K. Gkouskou
Faidon Magkos
Lorenzo Maria Donini
Aristides G. Eliopoulos
Dimitrios G. Goulis
author_sort Maria G. Grammatikopoulou
collection DOAJ
description Orthorexia nervosa (ON) is an unspecified feeding or eating disorder (USFED) characterized by an exaggerated, unhealthy obsession with healthy eating. Τypical eating disorders (EDs) and USFEDs are common among patients with diabetes mellitus (DM), which complicates metabolic control and disease outcomes. The present systematic review summarizes the evidence on the prevalence of ON symptomatology among patients with DM. PubMed, Web of Science, Scopus, and grey literature were searched, and relevant observational studies were screened using the Rayyan software. The quality of the studies was assessed using the appraisal tool for cross-sectional studies (AXIS) and the Newcastle–Ottawa scale (NOS). Out of 4642 studies, 6 fulfilled the predefined criteria and were included in the qualitative synthesis. Most studies relied on the ORTO-15 or its adaptations to identify ON among patients with DM. No apparent sex or age differences exist regarding the prevalence of ON symptoms. None of the studies compared the prevalence of ON in patients with type 1 and type 2 DM. Most of the research was of average to good methodological quality. In conclusion, patients with DM often exhibit ON tendencies, although research is still limited regarding the etiology or mechanistic drivers behind ON and the characteristics of patients with a dual ON–DM diagnosis.
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spelling doaj.art-b97adb9a8b2b452c92c91617b4a104662023-11-23T00:46:28ZengMDPI AGNutrients2072-66432021-10-011311382310.3390/nu13113823Obsessed with Healthy Eating: A Systematic Review of Observational Studies Assessing Orthorexia Nervosa in Patients with Diabetes MellitusMaria G. Grammatikopoulou0Konstantinos Gkiouras1Georgia Polychronidou2Chrysi Kaparounaki3Kalliopi K. Gkouskou4Faidon Magkos5Lorenzo Maria Donini6Aristides G. Eliopoulos7Dimitrios G. Goulis8Department of Nutritional Sciences & Dietetics, Faculty of Health Sciences, Alexander Campus, International Hellenic University, GR-57400 Thessaloniki, GreeceMedical School, Faculty of Health Sciences, University Campus, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, GreeceMedical School, Faculty of Health Sciences, University Campus, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, GreeceMedical School, Faculty of Health Sciences, University Campus, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, GreeceLaboratory of Biology, School of Medicine, National and Kapodistrian University of Athens, GR-11527 Athens, GreeceDepartment of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, 1958 Frederiksberg, DenmarkDepartment of Experimental Medicine-Medical Pathophysiology, Food Science and Endocrinology Section, Sapienza University of Rome, 00185 Rome, ItalyLaboratory of Biology, School of Medicine, National and Kapodistrian University of Athens, GR-11527 Athens, GreeceUnit of Reproductive Endocrinology, 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Papageorgiou General Hospital, GR-56429 Thessaloniki, GreeceOrthorexia nervosa (ON) is an unspecified feeding or eating disorder (USFED) characterized by an exaggerated, unhealthy obsession with healthy eating. Τypical eating disorders (EDs) and USFEDs are common among patients with diabetes mellitus (DM), which complicates metabolic control and disease outcomes. The present systematic review summarizes the evidence on the prevalence of ON symptomatology among patients with DM. PubMed, Web of Science, Scopus, and grey literature were searched, and relevant observational studies were screened using the Rayyan software. The quality of the studies was assessed using the appraisal tool for cross-sectional studies (AXIS) and the Newcastle–Ottawa scale (NOS). Out of 4642 studies, 6 fulfilled the predefined criteria and were included in the qualitative synthesis. Most studies relied on the ORTO-15 or its adaptations to identify ON among patients with DM. No apparent sex or age differences exist regarding the prevalence of ON symptoms. None of the studies compared the prevalence of ON in patients with type 1 and type 2 DM. Most of the research was of average to good methodological quality. In conclusion, patients with DM often exhibit ON tendencies, although research is still limited regarding the etiology or mechanistic drivers behind ON and the characteristics of patients with a dual ON–DM diagnosis.https://www.mdpi.com/2072-6643/13/11/3823disordered eatingeating disordersmetabolic controlhealthismpsychologyeating behavior
spellingShingle Maria G. Grammatikopoulou
Konstantinos Gkiouras
Georgia Polychronidou
Chrysi Kaparounaki
Kalliopi K. Gkouskou
Faidon Magkos
Lorenzo Maria Donini
Aristides G. Eliopoulos
Dimitrios G. Goulis
Obsessed with Healthy Eating: A Systematic Review of Observational Studies Assessing Orthorexia Nervosa in Patients with Diabetes Mellitus
Nutrients
disordered eating
eating disorders
metabolic control
healthism
psychology
eating behavior
title Obsessed with Healthy Eating: A Systematic Review of Observational Studies Assessing Orthorexia Nervosa in Patients with Diabetes Mellitus
title_full Obsessed with Healthy Eating: A Systematic Review of Observational Studies Assessing Orthorexia Nervosa in Patients with Diabetes Mellitus
title_fullStr Obsessed with Healthy Eating: A Systematic Review of Observational Studies Assessing Orthorexia Nervosa in Patients with Diabetes Mellitus
title_full_unstemmed Obsessed with Healthy Eating: A Systematic Review of Observational Studies Assessing Orthorexia Nervosa in Patients with Diabetes Mellitus
title_short Obsessed with Healthy Eating: A Systematic Review of Observational Studies Assessing Orthorexia Nervosa in Patients with Diabetes Mellitus
title_sort obsessed with healthy eating a systematic review of observational studies assessing orthorexia nervosa in patients with diabetes mellitus
topic disordered eating
eating disorders
metabolic control
healthism
psychology
eating behavior
url https://www.mdpi.com/2072-6643/13/11/3823
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