Association of Social Media Use Disorder and Orthorexia Nervosa Among Lebanese University Students: The Indirect Effect of Loneliness and Factor Structure of the Social Media Use Disorder Short Form and the Jong-Gierveld Loneliness Scales

The current study aims to examine the relationship between Social Media Use Disorder (SMUD) and Orthorexia Nervosa (ON), and evaluate the indirect effect of loneliness in this association. This cross-sectional study was carried out between July and September 2021. A total of 363 university students were recruited through convenience sampling through several universities in Lebanon's governorates. Data about information about the social media applications mostly used (Instagram, Facebook, Twitter, etc.), the number of times of entry to social media applications, the time spent on these applications, ON, loneliness and SMUD, were also collected. The Mplus v.7.2 software was used to estimate categorical confirmatory factor analyses (CFA) of the SMD and loneliness scales. The one-factorial model of the SMD scale fitted well according to χ2/df (69.71/27 = 2.58), TLI (.967), CFI (.956), and RMSEA values (.066; CI [.047-.085]; pclose = .079). The one-factorial model of the loneliness scale fitted well according to χ2/df (10.30/5 = 2.06) TLI (=0.97), CFI (=0.98), and RMSEA values (=0.054; CI [0.000-0.101]; pclose = 0.379). When entering the social media applications and time spent on these applications as independent variables in a first regression model, using Instagram (Beta = 2.73), using Tumblr (Beta = 3.22), spending 30-60 minutes per day on social media apps compared to less than 30 minutes (Beta = 2.33), higher physical activity index (Beta = 0.04) and loneliness (Beta = 0.67) were significantly associated with more ON. When entering the SMUD score as an independent variable in a second regression model, the results showed that higher SMUD (Beta = 0.50) was significantly associated with more ON. Also, loneliness played a partial indirect role in the association between SMUD and ON (by 16%). The current results can help mental health professionals better detect these potential psychological disorders and might help improve future treatment of issues related to ON and SMUD.

On Orthorexia Nervosa: A Systematic Review of Reviews

INTRODUCTION

Orthorexia nervosa (ON), characterized by a pathological preoccupation with "extreme dietary purity," is increasingly observed as a mental health condition among young adults and the general population. However, its diagnosis is not formally recognized and has remained contentious.

OBJECTIVE

In this systematic review, we attempt to overview previous reviews on ON, focusing on the methodological and conceptual issues with ON. This would serve both as a summary and a way to highlight gaps in earlier research.

METHODS

This systematic review took reference from the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) reporting guidelines, and using combinations of the search terms ("orthorexia" OR "orthorexia nervosa" OR "ON") AND ("review" OR "systematic review" OR "meta-analysis"), a literature search was performed on EMBASE, Medline and PsycINFO databases from inception up to October 31, 2023. Articles were included if (1) they were written or translated into English and (2) contained information pertaining to the diagnostic stability or validity of ON, or instruments used to measure ON symptoms and behaviors. Only review articles with a systematic literature search approach were included.

RESULTS

A total of 22 reviews were qualitatively reviewed. Several studies have reported variable prevalence of ON and highlighted the lack of thoroughly evaluated measures of ON with clear psychometric properties, with no reliable estimates. ORTO-15 and its variations such as ORTO-11, ORTO-12 are popularly used, although their use is discouraged. Existing instruments lack specificity for pathology and several disagreements on the conceptualization and hence diagnostic criteria of ON exist.

DISCUSSION

Previous reviews have consistently highlighted the highly variable (and contradictory) prevalence rates with different instruments to measure ON, lack of stable factor structure and psychometrics across ON measures, paucity of data on ON in clinical samples, and a need for a modern re-conceptualization of ON. The diagnosis of ON is challenging as it likely spans a spectrum from "normal" to "abnormal," and "functional" to "dysfunctional." "Non-pathological" orthorexia is not related to psychopathological constructs in the same way that ON is.

Greek adaptation of the Teruel Orthorexia Scale (TOS) in adults from the Republic of Cyprus: A bidimensional model may not be universal

The Teruel Orthorexia Scale (TOS) is a 17-item instrument designed to assess distinct facets of Orthorexia Nervosa (ON) and Healthy Orthorexia (HO). While a bidimensional model of TOS scores has been supported in diverse national and linguistic groups, the psychometric properties of the TOS have not been previously assessed in Greek-speaking populations. To rectify this, we assessed the psychometric properties of a novel Greek translation of the TOS in a sample of adults from Cyprus. A total of 1248 respondents (710 women, 538 men) completed the Greek TOS, as well as previously validated measures of perfectionism, obsessive-compulsive symptomatology, eating restriction, negative affect, and appearance evaluation. Our results showed that a bidimensional model of the TOS had less-than-adequate fit when modelled using both confirmatory factor analysis and exploratory structural equation modeling (ESEM). Conversely, both exploratory factor analysis and ESEM supported extraction of a 3-factor model consisting of a HO facet and separate components of emotional orthorexia and cognitive-social orthorexia. This 3-factor model showed a lack of measurement bias (measurement invariance across gender identity and lack of differential item functioning as function of age and body mass index), but there were differences in latent factor means as function of respondent age and body mass index. The 3-factor model showed adequate evidence of construct validity, with the latent emotional orthorexia and cognitive-social orthorexia facets showing significant and moderate associations with the additional constructs measured in the survey. Broadly speaking, these findings support the psychometric properties of a 3-factor model of the Greek TOS, but also suggest that the bidimensional model of the TOS may not have universal applicability. We encourage further assessments of factorial validity in other national and linguistic contexts.

Body appreciation predicts lower levels of orthorexia nervosa symptoms: Prospective findings

Recent evidence shows that negative body image may be a potential risk factor for symptoms of orthorexia nervosa (ON). However, whether positive body image plays a protective role against symptoms of ON remains unclear. Although prior research has established associations between body appreciation (a core component of positive body image) and ON symptoms, this research is limited to cross-sectional designs, precluding inferences of temporal precedence. Thus, the present study overcomes this limitation by testing whether body appreciation prospectively predicts ON symptoms. Data were analysed from 1253 adult women (M age = 34 years (SD = 9.4), 81.3% Caucasian) who completed the Orthorexia Nervosa Inventory (ONI) and Body Appreciation Scale 2-Short Form (BAS2-SF) at baseline (T1) and at three-month follow-up (T2). Multiple linear regressions were used to test whether body appreciation scores at T1 predicted ONI subscale scores (behaviours, emotions, and impairments) at T2. Results revealed that higher body appreciation scores at T1 significantly predicted decreased scores on each ONI subscale at T2, though effect sizes were small. Findings provide preliminary evidence that body appreciation may protect against ON symptoms. If replicated, efforts to address ON symptoms may be enhanced by promoting body appreciation.

The various facets of orthorexic eating behavior: five case reports of individuals with supposed orthorexia nervosa

BACKGROUND

Orthorexia nervosa, defined as a fixation on eating healthy according to subjective criteria, is recently being discussed as another variant of disordered eating behavior. Further characteristics are rigid adherence to nutritional rules, anxieties and avoidance behavior in the context of eating as well as a focus on health, not on body shape or weight loss, which is supposed to differentiate orthorexic from other disordered eating behavior. Although diagnostic criteria have been suggested, they have rarely been used in case reports published to date. Hence, the aim of this study was to present five individuals with supposed orthorexia nervosa, using preliminary diagnostic criteria to assess their eating behavior.

CASE PRESENTATION

The five cases (three females, two males) reveal the great variety of disordered eating behavior. Fear of unhealthy overweight (case A), supposed orthorexic eating behavior as a coping strategy for anorexia nervosa (case B), the exclusive consumption of animal products with a total exclusion of fruits and vegetables (case C), the fixation on exercise and athletic goals (case D) as well as a focus on a vegan diet and unprocessed foods (case E) are facets of orthorexia nervosa with varying degrees of impairment.

CONCLUSIONS

It is concluded that orthorexia nervosa manifests itself in very different ways and that more research is needed in order to determine whether it could be a useful additional category of disordered eating behavior.

Mediating effect of psychological distress and mindful eating behaviors between orthorexia nervosa and academic self-efficacy among Lebanese university female students

OBJECTIVES

This study examined the mediating effect of psychological distress and mindful eating behaviors between orthorexia nervosa and academic self-efficacy among Lebanese university female students.

METHODS

A total of 769 female participants enrolled in this cross-sectional study (mean age 21.58 ± 3.20 years). A self-administered questionnaire was distributed among university female students. The questionnaire consisted of Mindful Eating Behaviors Scale, ORTO-R, Depression Anxiety Stress Scale, and Arabic version of Academic Self-Efficacy Scale.

RESULTS

The results showed that psychological distress fully mediated the association between orthorexia nervosa and academic self-efficacy; higher orthorexia nervosa was significantly associated with less psychological distress (β= -0.31, p =.05), with more psychological distress significantly associated with lower academic self-efficacy (β= -0.32, p =.09). Focused eating fully mediated the association between orthorexia nervosa and academic self-efficacy; higher orthorexia nervosa was significantly associated with less focused eating (β=-0.09, p =.04), with more focused eating significantly associated with better academic self-efficacy (β = 1.40, p =.10). Orthorexia nervosa was not directly associated with academic self-efficacy in both models.

CONCLUSION

This study shed light on important connections between orthorexia nervosa, psychological distress, mindful eating behaviors, and academic self-efficacy within the Lebanese context. The findings will have practical implications for both educational institutions and healthcare providers striving to support young female adults' overall well-being and academic success.

Dieting, obsessive-compulsive thoughts, and orthorexia nervosa: Assessing the mediating role of worries about food through a structural equation model approach

BACKGROUND

Orthorexia Nervosa (ON) is a condition characterized by an obsessive focus on healthy eating, inflexible dietary rules, and persistent preoccupations with food. Despite it has been recently the subject of increasingly relevant studies, little is known about the mechanisms that might foster ON symptoms.

OBJECTIVE

This study used a structural equation modeling approach to test the mediating effect of thoughts, worries, and preoccupations about food on the relationship that eating disorders (EDs) attitudes (e.g., dieting) and obsessive-compulsive thoughts and symptoms have with ON in a large community sample. It was hypothesized that the effect of dieting and obsessive-compulsive thoughts and symptoms on ON would be partially mediated by the presence of thoughts, worries, and preoccupations about food.

METHODS

Data from a cross-sectional sample of 1328 participants (females = 976) recruited from the general population were asked to fill in an online survey comprising the Eating Attitude Test-26 (EAT-26), the Obsessive-compulsive subscale of the Symptom Checklist-90 Revised (SCL-90R-OC) and the Orthorexia Scale-15 (ORTO-15).

RESULTS

Structural equation models indicated that both obsessive-compulsive thoughts and symptoms and dieting had a direct effect on ON and that food preoccupation partially mediated these relationships.

CONCLUSION

These findings provide novel insight into the nature of ON that could aid its conceptualization and treatment.

The relationship between orthorexia nervosa and cyberchondria levels in nurses: A cross-sectional study

PURPOSE

The study was conducted with the aim of investigating the relationship between orthorexia nervosa and cyberchondria levels among nurses.

METHODS

This cross-sectional study was conducted with 399 nurses through face-to-face interviews. The data were collected using a participant information form, the Cyberchondria Severity Scale, and the Orthorexia Nervosa-11 scale (ORTO-11).

RESULTS

The mean score of the nurses' cyberchondria severity scale was 73.95 ± 18.53, while the mean score of the Orthorexia Nervosa-11 scale was 28.23 ± 4.76. In the study, a low negative correlation was found between the cyberchondria and orthorexia nervosa levels (p < 0.05).

CONCLUSIONS

The increase in the level of cyberchondria among nurses increases the risk of orthorexia nervosa. Therefore, it is recommended that nurses receive proper nutritional education and psychosocial support to reduce their tendency towards orthorexia nervosa and cyberchondria.

Perfectionism as a moderator of the relationship between orthorexia nervosa and obsessive-compulsive symptoms

PURPOSE

Orthorexia nervosa (ON), a proposed disorder describing an obsessive focus on "healthy" eating, is characterised as having overlapping symptoms with obsessive-compulsive disorder. However, ON/obsessive-compulsive (OC) symptom relationships are inconsistently reported. The current study aimed to investigate if the contribution of OC symptoms and beliefs explain variability in ON symptoms and determine if perfectionism, a transdiagnostic factor, moderates the ON/OC symptom relationship.

METHODS

The study comprised 190 participants (Mage = 28.63, SDage = 9.88; 80% female) recruited via an undergraduate research programme, social media, advocacy organisations, and a participant registry. Participants completed an online questionnaire assessing ON, OC, and perfectionism symptoms.

RESULTS

A linear regression analysis found OC symptoms and beliefs explained 22.9% variability in ON symptoms (p < 0.001, f2 = 0.38) and perfectionism moderated the ON/OC symptom relationship, where higher levels of perfectionism with higher levels of OC symptoms was associated with higher levels of ON symptoms, explaining 2.2% variability (p = .01, f2 = 0.03).

CONCLUSION

OC symptoms appear more common in ON than previous studies indicate. However, the interaction between perfectionism and OC symptoms may drive obsessions in ON. Findings help refine our current understanding of ON phenomenology with implications for ON treatment development. Future research should further explore perfectionism in ON phenomenology.

LEVEL OF EVIDENCE

Level V (Opinions of respected authorities, based on descriptive studies, narrative reviews, clinical experience, or reports of expert committees).

The validation of the Barcelona Orthorexia Scale-Spanish version: evidence from the general population

PURPOSE

To validate the Spanish version of Barcelona Orthorexia Scale (BOS) in general population, analyzing its items and both its internal structure and psychometric properties (internal consistency and temporal stability). In addition, the relationship between ON and external measures of attitudes towards food was assessed.

METHOD

The general population sample consisted of 446 women and 104 men, aged between 18.31 and 69.44 years (M = 36.03; SD = 12.46). Of these, 39 participants answered again the questionnaires after one month from the first application. The assessment instruments were a sociodemographic questionnaire, the BOS, the Eating Attitudes Test-26 (EAT-26) and the Dutch Eating Behavior Questionnaire (DEBQ).

RESULTS

The final version of the BOS is composed of 35 items. Exploratory factor analysis extracted an internal structure of 5 factors (Behavioral, Concern for healthy food, Attitudes and beliefs about food, Vital achievement and Emotional discomfort). The BOS-35 and the factors presented good internal consistency (α = .80-.90), and an adequate temporal stability (r = .62-.88). The highest association was observed between the Emotional Distress (BOS) and the Diet subscale (EAT-26; r = .51).

CONCLUSIONS

This first validation of the BOS has shown adequate psychometric properties, being a valid and reliable instrument to assess ON in the general population. Level of evidence Level II: Evidence obtained from well-designed controlled trials without randomization.

Profiling orthorexia nervosa in young adults: the role of obsessive behaviour, perfectionism, and self-esteem

BACKGROUND

Orthorexia nervosa (ON) is a relatively new potential eating disorder characterized by an intense fixation on one's eating habits and the imposition of rigid and inflexible rules on oneself. Psychological factors such as obsessive-compulsive tendencies, perfectionism and self-esteem may interact in complex ways and contribute to the development and maintenance of ON.

METHODS

This cross-sectional study included 977 participants from Italy, Lebanon, and Poland. Participants completed a questionnaire consisting of socio-demographic information, the Eating Habits Questionnaire, Obsessive-Compulsive Inventory, Obsessive Beliefs Questionnaire-44, Multidimensional Perfectionism Scale, and Rosenberg Self-Esteem Scale. Cluster analysis was used to identify subgroups of individuals with common psychological characteristics associated with ON.

RESULTS

Three distinct clusters were identified based on their levels of obsession-compulsive beliefs, perfectionism, and self-esteem. The first group, labeled "High Self-Mastery," consisted of 37.0% of participants and exhibited low levels of obsession-compulsion, obsessive beliefs, and perfectionism, but high self-esteem. The second group, "Moderate Self-Mastery," comprised 39.5% of participants and had moderate levels of these traits. The third group, "Low Self-Mastery," consisted of 23.6% of participants and exhibited the highest levels of obsession-compulsion, obsessive beliefs, and perfectionism, but the lowest self-esteem. Additionally, a multivariable analysis revealed that being Lebanese (Beta = 3.39) and belonging to the last cluster (Beta = 4.53) were significantly associated with higher ON tendencies.

CONCLUSION

Our findings show that individuals with low self-mastery, characterized by low self-esteem and high levels of obsessive perfectionism, are more likely to exhibit ON tendencies. This study emphasizes the need to have a comprehensive understanding of how cultural and psychological factors interact in the development of eating disorders.

Relationship between disgust and orthorexia nervosa and psychometric properties of the Italian Dusseldorf orthorexia scale in a general population sample

BACKGROUND

It remains unclear among clinicians and researchers whether orthorexia nervosa (ON) is a part of the obsessive-compulsive disorder spectrum or eating disorders. Disgust seems to be a shared psychopathological factor in these clinical presentations, indicating a potentially crucial role in ON. On the other hand, numerous psychometric tools have been developed to evaluate ON. The Dusseldorf Orthorexia Scale (DOS) was recently validated in an Italian sample. However, the study's primary limitation was that the scale was only administered to undergraduate university students. This study aimed to investigate the psychometric properties (including factorial structure, reliability, and measurement invariance conditional on sex) of the Italian version of the DOS (I-DOS) on a sample from the general population. Additionally, the study sought to determine the nomological validity of the I-DOS by examining its relationship with disgust sensitivity.

METHODS

A sample of 521 participants took part in this study and completed a battery that assessed ON and disgust sensitivity. To assess the I-DOS structure, reliability, and measurement invariance we respectively conducted confirmatory factor analysis (CFA), computed McDonalds's omega, and performed hierarchical series of multigroup CFAs. Then, we tested the relationship between ON and disgust sensitivity.

RESULTS

CFA confirmed the unifactorial model of I-DOS and it respected the configural, metric, and strict invariance while a partial scalar invariance was achieved. It also showed good reliability with an omega of 0.87. In addition, we found a positive relationship between ON and disgust sensitivity, thus confirming the nomological validity of I-DOS.

CONCLUSIONS

Our findings suggest that the Italian version of the Dusseldorf orthorexia scale (I-DOS) exhibits strong psychometric properties and can be an effective instrument for assessing ON in a general population sample. Notably, the most significant and innovative outcome was the positive correlation between ON and disgust sensitivity. As disgust has been linked to other clinical presentations, this preliminary result could serve as a foundation for future research exploring this phenomenon in greater detail.

Psychometric properties of Turkish Orthorexia Nervosa Inventory in a clinical adolescent sample

PURPOSE

Orthorexic tendencies are increasingly prevalent among children and adolescents. This study set out to investigate the reliability and validity of the Turkish version of the Orthorexia Nervosa Inventory (ONI) in a clinical adolescent sample.

METHODS

266 adolescents aged 12-18 years, who applied to the Department of Child and Adolescents Psychiatry were included in the study. Participants completed sociodemographic data form, ONI, Eating Attitude Test, Revised Child Anxiety and Depression Scale-Child Version and ORTO-15.

RESULTS

The Cronbach's alpha coefficient for the ONI reached 0.92, indicating very good internal consistency. Total factor scores and Cronbach alpha values for behaviors, impairments, and emotions were found to be 0.84, 0.84, and 0.83, respectively. The CFA performed supported the three-factor structure of the ONI obtained in the first sample. The minimum discrepancy per degree of freedom = 1.89 and the model generally fit well to the structure (RMSEA = 0.058, SRMR = 0.033, CFI = 0.92, TLI = 0.91).

DISCUSSION

This study has shown that the Turkish version of the ONI is a valid and reliable scale for specifying the tendency for Orthorexia Nervosa in a Turkish adolescent population. These findings contribute in several ways to our understanding of orthorexic tendencies and provide a basis for more concrete research data that can be obtained by using the ONI, which is a reliable scale in studies to be conducted among adolescents.

LEVEL OF EVIDENCE

Level V, descriptive cross-sectional study.

Orthorexia nervosa symptomatology in the LGBTQ community: Gender and sexual orientation differences

This study investigated whether gender and sexual minority groups exhibit differences in orthorexia nervosa (ON) symptomatology compared to cisgender, straight individuals. A sample of 441 non-clinical participants (65 % White, mean age = 27) reported their gender (104 cisgender men, 229 cisgender women, 28 transgender men, 27 transgender women, 53 nonbinary) and sexual orientation (144 straight, 45 gay, 54 lesbian, 105 bisexual/pansexual, 68 queer), and completed the Orthorexia Nervosa Inventory. The LGBTQ group exhibited greater ON symptomatology compared to the cisgender, straight group. ANOVAs demonstrated significant group differences according to gender and sexual orientation. Post-hoc tests revealed that transgender women exhibited greater ON symptomatology than cisgender men and cisgender women. However, nonbinary individuals exhibited lower ON symptomatology than cisgender women, transgender men, and transgender women. Additionally, lesbians exhibited greater ON symptomatology than straight individuals. Our findings suggest that individuals with an LGBTQ identity, particularly transgender women and lesbians, may experience greater ON symptomatology than cisgender, straight individuals. However, nonbinary individuals appear to experience lower ON symptomatology, which may relate to a lack of alignment with masculine or feminine ideals, such that these individuals may feel a lack of need to conform to a certain appearance ideal based on gender norms.

Depressive symptoms among a sample of Lebanese adolescents: Scale validation and correlates with disordered eating

BACKGROUND

Adolescence is a transitional phase that brings many psychological and physiological challenges that increase emotional vulnerability and threaten the adolescent's mental well-being. Indeed, mental illnesses, such as depression and eating disorders, show an alarming increase in prevalence after puberty. Adolescent depression is particularly concerning owing to the fact that it is a principal cause of disability among adolescents, an important risk factor for suicidality, and is associated with higher risks of present and subsequent morbidity. Our study aimed at (1) examining the psychometric properties of the Patient Health Questionnaire-9 (PHQ-9) and (2) evaluating the correlation between depression, eating disorders, stress, and other variables in a sample of Lebanese adolescents.

METHODS

This cross-sectional research enlisted 555 Lebanese teenagers (15-18 years) from all Lebanese governorates (May-June 2020). The confirmatory factor analysis of the PHQ-9 scale items was carried out using the SPSS AMOS program v.24. The relative chi-square, the root mean square error of approximation (RMSEA), Tucker Lewis Index (TLI) and the comparative fit index (CFI) were all utilized as goodness-of-fit indexes.

RESULTS

The median age of the participants was 16.66 ± 1.00 years, with 75.7% females. Among these 555 adolescents, 62.9% had mild-to-moderate depression and 14% reported moderately severe-to-severe depression, while only 23.1% were classified as not suffering from depression. Confirmatory factor analysis of the PHQ-9 scale was conducted using the one-factor structure that is described in the literature; the fit indices obtained were acceptable as follows: χ²/df= 136.26/27 =5.05, CFI=0.92, TLI=0.90 and RMSEA=0.085 [0.072-0.100]. However, the modification indices between items 6 and 9 were high; after correlating these two items, the fit indices improved more as follows: χ²/df= 105.59/26=4.06, CFI=0.94, TLI=0.92 and RMSEA=0.074 [0.060-0.089]. The multivariable analysis results showed that more stress (β=0.59), female sex (β=1.54), and more binge eating (β=0.16) were significantly associated with more depression.

CONCLUSION

This study supports the validity of the PHQ-9, which presents as a reliable tool for the evaluation of depression in future epidemiological studies of Lebanese adolescents. It also elucidates the high level of depression among this age group and its correlation with modifiable and unmodifiable factors.

Attachment styles and orthorexia nervosa among Lebanese adolescents: The indirect effect of self-esteem

BACKGROUND

Orthorexia nervosa (ON), defined as the pathological obsession for pure foods, remains a novelty in the field of eating disorders. Many studies in the literature have shown that attachment styles correlate with the development of eating disorders. Patients with eating disorders were found to be more avoidant and anxious and less secure than individuals who do not have eating disorders. However, studies on the relationship between attachment styles and ON remain limited, particularly in adolescents. This study assessed the relationship between attachment styles and ON in Lebanese adolescents (15-18 years), along with evaluating the indirect effect of self-esteem on this association.

METHODS

This study used a cross-sectional design and was carried out during May-June 2020 with 555 students (15-18 years) enrolled. The Düsseldorf Orthorexia Scale was utilized to screen for ON tendencies. A linear regression was conducted taking the DOS score as the dependent variable. The PROCESS Macro was used to test the indirect effect of self-esteem between attachment styles and ON.

RESULTS

Higher fearful and preoccupied attachment styles, female gender, and more physical activity were significantly associated with more ON tendencies, whereas higher self-esteem was significantly associated with less ON tendencies. When adjusting for all sociodemographic characteristics and other attachment styles, none of the attachment styles remained significantly correlated with ON tendencies. Self-esteem mediated the association between secure attachment style and ON and between dismissive attachment style and ON.

CONCLUSIONS

The rise in ON warrants further studies and investigations to raise awareness and plan behavioral interventions in order to treat it.

orthorexia nervosa: Italian validation of the Teruel Orthorexia Scale (TOS)

PURPOSE

Orthorexia nervosa (OrNe) is a potentially pathological condition characterized by a fixation on healthy diet. An increasing number of studies have been conducted on this mental preoccupation, but the validity and reliability of some of the psychometric instruments employed in its assessment are still under debate. Among these measures, the Teruel Orthorexia Scale (TOS) seems to be promising, given that it allows to differentiate between OrNe and other non-problematic forms of interest with healthy eating, named as healthy orthorexia (HeOr). The aim of this study was to examine the psychometric properties of an Italian version of the TOS, by testing its factorial structure, internal consistency, test-retest reliability, and validity.

METHOD

Through an online survey, we recruited 782 participants from different regions of Italy, asking them to complete the following self-report instruments: TOS, EHQ, EDI-3, OCI-R, and BSI-18. From the initial sample, 144 participants agreed to complete a second TOS administration 2 weeks later.

RESULTS

Data confirmed the validity of the 2-correlated factors structure of the TOS. The questionnaire also showed good reliability, both in terms of internal consistency and temporal stability. With regard to the TOS validity, results showed that OrNe was significantly and positively associated with measures of psychopathology and psychological distress, while HeOr showed no correlations or negative associations with the above-mentioned measures.

CONCLUSION

Based on these results, the TOS can be considered a promising measure for the assessment of both pathological and non-problematic forms of orthorexic eating behavior also in Italian population.

LEVEL OF EVIDENCE

Level V, descriptive cross-sectional study.

Orthorexia nervosa and type 1 diabetes: results of a cross-sectional study

AIM

Orthorexia nervosa (ON) is a condition characterized by an excessive importance attributed to the intake of healthy foods. This study was aimed at investigating the prevalence of ON in subjects with type 1 diabetes (T1D) compared to control subjects.

METHODS

Patient with T1D using either flash glucose monitoring or continuous glucose monitoring were enrolled. For the selection of control group, each patient was asked to indicate one non-diabetic subject of their same sex and approximate age among colleagues at work and school. Patients and controls completed the following questionnaires: ORTO-15, Dusseldorf Orthorexie Scale (DOS), Eating Disorder Examination Questionnaire (EDE-Q) and Brief Symptom Inventory (BSI). The principal outcome was the prevalence of ON among T1D and control subjects.

RESULTS

We enrolled 44 patients with T1D aged 39.7 ± 15.7 years, with BMI 24.3 ± 4.3 kg/m², and mean HbA1c 53.5 [49-57] mmol/mol. Control subjects were similar to T1D with respect to sex, age and BMI. Thirty-two [72%] and 29 [65%] subjects among patients and controls, respectively, had ORTO15 < 40 (between-group p = 0.48). Two (4.5%) and zero subjects among patients and controls, respectively, had DOS ≥ 30 (p = 0.29). Median scores of DOS, but not of ORTO-15, were significantly higher in patients than in controls. None of the metabolic variables showed a correlation with psychometric tests in T1D.

CONCLUSION

Although the prevalence of ON was not significantly higher in T1D than in controls, patients with T1D showed higher scores of some, but not all, tests assessing orthorexia, without any significant correlation with metabolic parameters.

Orthorexia nervosa symptoms prospectively predict symptoms of eating disorders and depression

The possible mental health impacts of orthorexia nervosa (ON) symptoms are poorly understood, as existing research in this field has mostly employed cross-sectional designs. This study investigated whether ON symptoms prospectively predict changes in eating disorder psychopathology and general mental health. A convenience, non-clinical sample of adults (n = 313; 83 % women) completed study measures at baseline (T1) and three-month follow-up (T2). Negative binomial regressions were computed to test whether T1 ON symptoms predict changes in binge eating and driven exercise episodes. Linear regressions were computed to test whether T1 ON symptoms predict changes in eating concerns, depressive symptoms, and life satisfaction. Higher ON symptoms prospectively predicted greater number of binge eating and driven exercise episodes at T2. Higher ON symptoms predicted increased eating concerns and depressive symptoms at T2. ON symptoms did not predict changes in life satisfaction. Findings highlight possible risks associated with ON symptomatology. Efforts to better inform the public about the risks of these pathological eating patterns are needed.

Orthorexic eating behaviors are not all pathological: a French validation of the Teruel Orthorexia Scale (TOS)

As no French validated measurement tool distinguishing healthy orthorexia (HeOr) from orthorexia nervosa (OrNe) currently exists, this study aimed at examining psychometric properties of the French version of the Teruel Orthorexia Scale (TOS). A sample of 799 participants (Mean [SD] age: 28.5 [12.1] years-old) completed the French versions of the TOS, the Düsseldorfer Orthorexia Skala, the Eating Disorder Examination-Questionnaire, and the Obsessive-Compulsive Inventory-Revised. Confirmatory factor analysis and exploratory structural equation modeling (ESEM) were used. Although the bidimensional model, with OrNe and HeOr, of the original 17-item version showed an adequate fit, we suggest excluding items 9 and 15. The bidimensional model for the shortened version provided a satisfactory fit (ESEM model: CFI = .963, TLI = .949, RMSEA = .068). The mean loading was .65 for HeOr and .70 for OrNe. The internal consistency of both dimensions was adequate (α_HeOr = .83 and α_OrNe = .81). Partial correlations showed that eating disorders and obsessive-compulsive symptomatology measures were positively related to OrNe and unrelated or negatively related to HeOr. The scores from the 15-item French version of the TOS in the current sample appears to present an adequate internal consistency, pattern of associations in line with what was theoretically expected, and promising for differentiating both types of orthorexia in a French population. We discuss why both dimensions of orthorexia should be considered in this area of research.

health professionals' perspectives on orthorexia nervosa: clinical utility, measurement and diagnosis, and perceived influence of sociocultural factors

PURPOSE

This study examined U.S. health professionals' perspectives on the clinical utility, measurement, and etiology of orthorexia nervosa (ON).

METHODS

Participants (n = 100) were U.S. health professionals with experience working clinically with eating disorders, including trainees, Ph.D. psychologists, social workers/mental health counselors, and medical health professionals. After reviewing the proposed ON criteria, participants responded to questions regarding the clinical utility, diagnosis, and measurement of ON, and sociocultural influence on the emergence of ON. Views of ON as a useful diagnostic category were examined as a function of participants' current involvement in clinical versus research activities.

RESULTS

Participants mostly (71.9%) agreed that ON should be a distinct clinical diagnosis. Participants who endorsed ON as a valid diagnosis spent more time on clinical work and less time engaged in research compared to participants who disagreed (both ps < 0.05). Approximately 27% of participants believed additional components should be added to the proposed ON diagnostic criteria. Participants indicated that sociocultural factors have considerable influence on the development of ON, namely the diet and weight loss industry, and the perceptions that biological/organic/vegan and low fat/low carb/gluten free food are the healthiest.

CONCLUSION

Professionals who spent more time working clinically with eating disorders were more likely to endorse ON as a unique disorder, and professionals who spent more time on research were more likely to disagree. To the extent that professionals who spend more time on research may shape the narrative around ON more visibly, this study underscores the importance of listening to practitioners' experiences in applied settings.

LEVEL OF EVIDENCE

Level V: Opinions of authorities, based on descriptive studies, narrative reviews, clinical experience, or reports of expert committees.

Socio-cultural power of social media on orthorexia nervosa: An empirical investigation on the mediating role of thin-ideal and muscular internalization, appearance comparison, and body dissatisfaction

As social media continues to penetrate users' daily lives, concerns about its negative impact on body image issues and eating disorders are becoming focuses of research. It remains unclear whether social media should be held responsible for promoting orthorexia nervosa-a problematic and extreme fixation on healthy eating. The present study draws on socio-cultural theory and tests a social media-based model in the context of orthorexia nervosa to enhance knowledge of social media's influence on body image issues and orthorectic eating tendencies. The socio-cultural model was tested using structural equation modeling based on responses from a German-speaking sample (n = 647). The results indicate that social media users' involvement with health and fitness accounts is associated with higher orthorectic eating tendencies. Thin-ideal and muscular internalizations mediated this relationship. Interestingly, body dissatisfaction and appearance comparison were not mediators, which can be attributed to the characteristics of orthorexia nervosa. Higher involvement with health and fitness accounts on social media was also related to higher appearance comparisons. The results highlight the powerful influence of social media on orthorexia nervosa and the relevance of socio-cultural models in investigating the mechanisms underlying this influence.

Exploring the role of positive body image in healthy orthorexia and orthorexia nervosa: A gender comparison

Current scholarship on orthorexia nervosa remains undecided about the role of body image in this novel eating disorder. This study aimed to explore the role of positive body image in differentiating between healthy orthorexia and orthorexia nervosa and assess how this might differ for men and women. A total of 814 participants (67.1% women; age M = 40.30, SD = 14.50) completed the Teruel Orthorexia scale, as well as measures of embodiment, intuitive eating, body appreciation and functionality appreciation. A cluster analysis revealed four distinct profiles characterized by high healthy orthorexia and low orthorexia nervosa; low healthy orthorexia and low orthorexia nervosa; low healthy orthorexia and high orthorexia nervosa; and high healthy orthorexia and high orthorexia nervosa. A MANOVA identified significant differences for positive body image between these four clusters, as well as that there were no significant differences between men and women for healthy orthorexia and orthorexia nervosa, despite men scoring significantly higher than women on all measures of positive body image. Cluster × gender interaction effects were found for intuitive eating, functionality appreciation, body appreciation and experience of embodiment. These findings indicate that the role of positive body image in healthy orthorexia and orthorexia nervosa may differ for men and women, making these relationships worthy of further exploration.

The factors associated with orthorexia nervosa in type 2 diabetes and their effect on diabetes self-management scores

PURPOSE

This study aimed to determine the factors affecting the ORTO-R scores in individuals with T2DM and to investigate their effect on diabetes self-management.

METHODS

The study included 373 individuals with type 2 diabetes between the ages of 18-65 who applied to Akdeniz University Hospital Endocrinology and Metabolic Diseases Polyclinic between January and May 2022. A questionnaire including sociodemographic data, information about diabetes, and nutritional habits, and the ORTO-R and Type 2 Diabetes Self-Management Scales were used to collect data. Linear regression analysis was performed to determine the factors affecting ORTO-R.

RESULTS

The linear regression analysis showed that age, gender, education level, and duration of diabetes affected ORTO-R scores in patients with type 2 diabetes. Body mass index, comorbidities (cardiovascular diseases, kidney diseases and hypertension), diabetes-related complications, diabetes treatment method and dieting had no significant contribution to the model (p > 0.05). We also found that education level, comorbidities, diabetes-related complications, diabetes treatment method, dieting, and BMI can affect diabetes self-management.

CONCLUSION

It should be kept in mind that type 2 diabetes are at risk of orthorexia nervosa (ON) in terms of various aspects such as age, gender, education level and duration of diabetes. Since the factors affecting the risk of ON and the factors affecting diabetes self-management are intertwined, orthorexic tendencies should be kept under control while trying to increase self-management in these patients. In this respect, developing individual recommendations according to the psychosocial characteristics of patients may be an effective approach.

LEVEL OF EVIDENCE

Level V, cross-sectional study.

The indirect role of orthorexia nervosa and eating attitudes in the association between perfectionism and muscle dysmorphic disorder in Lebanese male University students - results of a pilot study

BACKGROUND

The literature highly concentrates on disorders related to body image among women but only minimally when it comes to the male population; hence, in order to provide general practitioners, and primary care physicians in general, and psychiatrists in particular, with additional information concerning muscle dysmorphia among male university students in Lebanon, this study seemed essential, and was therefore conducted to (1) identify the prevalence of MDD, and (2) evaluate the indirect effect of eating attitudes in general and orthorexia nervosa in particular, in the association between perfectionism and muscle dysmorphic disorder (MDD) among a sample of male university students.

METHODS

In this cross-sectional study conducted between September 2021 and May 2022, 396 male university students from multiple universities in Lebanon filled the online Arabic questionnaire.

RESULTS

The results showed that 26 (6.6%) of the participants had MDD. Orthorexia nervosa and eating attitudes mediated the association between perfectionism and MDD; higher perfectionism was significantly associated with higher ON and more inappropriate eating; higher ON and more inappropriate eating were significantly associated with higher MDD, whereas perfectionism had a significant total direct effect on MDD. The high prevalence of MDD among male university students in Lebanon implies further investigation on the national level in the country.

CONCLUSION

Awareness campaigns among the university students could be adopted at the national level to increase the level of knowledge on the concepts of obsessive self-destructive perfectionism, orthorexia nervosa and muscle dysmorphia.

Psychometric properties of the ORTO-R in a community-based sample of women and men from Poland

PURPOSE

Over the past two decades, orthorexia nervosa (ON) has been increasingly investigated. Recently, a new revision version of the ORTO-15, namely ORTO-R, was used. The main objective of the present study was to confirm the factor structure of Polish version of the ORTO-R for evaluating ON thoughts and behaviors.

METHOD

In three studies, a total of 3081 participants was selected by random sampling through several universities and companies. In Study 1, we used original items of ORTO-15, in Study 2 we used both, the ORTO-15 items and the revised items from ORTO-R, and in Study 3 we used only the items from the ORTO-R. Confirmatory factor analysis was used for determining the factorial structure of the Polish version of the ORTO-R. We also assessed internal consistency and convergent and criterion validity of the ORTO-R.

RESULTS

The model composed of the revised items (ORTO-R) was characterized of good convergent and criterion validity. Furthermore, ORTO-R appeared to be more internally consistent as compared to ORTO-15.

CONCLUSION

The 6-item ORTO-R is valid and reliable method to assess orthorexic thoughts and behaviors among Polish-speaking population and could be applied in future research. Using revised version of the items is strongly preferred to using the items in their original ORTO-15 form.

Orthorexia nervosa in gay men-the result of a spanish-polish eating disorders study

BACKGROUND

The purpose of this exploratory study was to identifying demographic factors and unique predictors of ON e.g., the use of pre-exposure prophylaxis (PrEP), the use of social media and the Grindr ® dating application among a sample group of Spanish and Polish identifying gay men.

METHODS

The study was conducted in Poland and Spain between March and June 2021 using questionary: ORTO-15. Data was collected using a three-section self-administered questionnaire. The first section contained demographic data, the second part was the Polish and Spanish version of the Orto-15, and the third part was the Polish and Spanish version of the EAT-26.

RESULTS

Total enrollment was 394 gay men. In regression proportional hazards single model, significant predictors of ON were: age (OR = 0.964, 95% CI, 0.944-0.984), BMI (OR = 0.895, 95% CI, 0.848-0.944), staying in an informal relationship compared to being single (OR = 2.138, 95%CI, 1.225-3.732), occasional use of Pre-exposure Prophylaxis (OR = 4.667, 95%CI, 1.186-18.362) and use of the Grindr application (OR = 5.312, 95%CI, 3.373-8.365). Instagram users had lower risk of ON (OR = 0.479, 95%CI, 0.279-0.822). The multivariate analysis showed that Grindr usages (OR = 4.72; 95%CI, 2.89-7.72) correlated with higher risk of ON. Higher BMI (OR = 0.913, 95%CI, 0.861-0.98) and daily use of Pre-exposure Prophylaxis (OR = 0.142, 95%CI, 0.03-0.674) is associated with lower risk of ON.

CONCLUSIONS

The most important predictors of orthorexia nervosa in gay men are: low BMI and the use of Grindr. The effect of daily usage of PrEP is associated with lower risk, and occasional use is associated with increased risk, of orthorexia nervosa.

Psychometric properties of the Teruel Orthorexia Scale (TOS) among a French-Canadian adult sample

BACKGROUND

Psychometric properties of the Teruel Orthorexia Scale (TOS) have been examined in several languages (Arabic, English, Portuguese, Spanish, and Turkish), but not in French.

PURPOSE

The objective was to examine the psychometric properties of the TOS among a French-Canadian adult sample.

METHODS

Participants were 296 French-speaking Canadian adults (M = 34.2 years, SD = 11.9, 85.1% women). They completed the TOS alongside with several other measures (e.g., alcoholic consumption, cigarette smoking, disturbed eating attitudes and behaviors, frequency of physical activities, intuitive eating, vegetarian diet, and negative affect).

RESULTS

The results supported the a priori two-factor representation (orthorexia nervosa and healthy orthorexia) of the French version of the TOS and provided further support for the superiority of an exploratory structural equation modeling approach, relative to a confirmatory factor analytic approach. Furthermore, the results supported no differential item functioning as a function of respondents' characteristics (age, body mass index, diagnosis of eating disorders, frequency of physical activities, gender, and vegetarian diet). Latent mean differences were found in healthy orthorexia and orthorexia nervosa factors as a function of respondents' characteristics. Finally, significant correlations were found between TOS factors and convergent measures (alcohol consumption, cigarette smoking, disturbed eating attitudes and behaviors, intuitive eating, and negative affect).

CONCLUSION

The present study confirmed that the French version of the TOS has satisfactory psychometric properties (i.e., factor validity and reliability, no differential item functioning, and convergent validity).

LEVEL OF EVIDENCE

V, cross-sectional study.

Dietary patterns and eating behaviors on the border between healthy and pathological orthorexia

PURPOSE

The obsession with healthy eating associated with restrictive behaviors is called Orthorexia Nervosa (OrNe). Nevertheless, some studies suggest that orthorexia can also be a non-pathological interest in healthy eating which is called Healthy Orthorexia (HeOr). First, one of the main objectives of this study is to compare HeOr, OrNe and eating behaviors in different dietary patterns (vegan, vegetarian and omnivore). Second is to reveal the relationship between HeOr, OrNe and eating behaviors (cognitive restraint, uncontrolled eating, and emotional eating). Lastly, to determine the potential predictors of HeOr and OrNe.

METHODS

Participants (N = 426 with an omnivorous diet; N = 415 with a vegan diet, N = 324 with a vegetarian diet) completed a web-based descriptive survey, the Teruel Orthorexia Scale and the Three-Factor Eating Questionnaire-R 21.

RESULTS

HeOr and OrNe were more common in individuals following both vegan and vegetarian diets. Individuals following a vegan or a vegetarian diet had lower body mass index and higher body image satisfaction than individuals following an omnivorous diet. Cognitive restraint and following a vegan or a vegetarian diet were the two main predictors of both HeOr and OrNe. Cognitive restraint was positively associated with both HeOr and OrNe (more strongly correlated with OrNe), whereas uncontrolled eating and emotional eating behaviors were positively related to OrNe and negatively related to HeOr.

CONCLUSION

The present study contributes to a better understanding of the some similarities and differences between HeOr and OrNe. It also points to higher rates of orthorexia in individuals following a vegan or vegetarian diet and represents a further step towards developing prevention and intervention programs by identifying risk factors for OrNe. Level V Cross-sectional descriptive study.

Healthy orthorexia vs orthorexia nervosa: associations with body appreciation, functionality appreciation, intuitive eating and embodiment

PURPOSE

Current conceptualizations and measures of orthorexia nervosa may not be accurately distinguishing between the healthy vs pathological pursuit of a healthy diet, leading to very high prevalence rates and risking the pathologizing and stigmatizing of healthy eating more generally. Recent research has identified healthy orthorexia as a novel construct conceptually distinct from orthorexia nervosa, which represents the non-pathological pursuit of a healthy diet. In light of the strong body of evidence supporting the role of positive body image in eating behavior, the current study aimed to examine the associations between healthy orthorexia, orthorexia nervosa, intuitive eating and indices of positive body image.

METHODS

The current study employed a cross-sectional design. An online community sample (N = 835; 62% women; M_age = 40.24, SD = 14.45) completed self-report questionnaires including the Teruel Orthorexia Scale, Body Appreciation Scale-2, Functionality Appreciation Scale, Intuitive Eating Scale-2, and Experience of Embodiment Scale.

RESULTS

Intuitive eating and indices of positive body image were significantly positively associated with healthy orthorexia and inversely associated with orthorexia nervosa. A hierarchical multiple regression analysis found that intuitive eating and indices of body image were uniquely associated with 13.3% of the variance of healthy orthorexia above and beyond that accounted for by orthorexia nervosa. Intuitive eating moderated the relationship between healthy orthorexia and orthorexia nervosa.

CONCLUSION

The findings of this study provide support for intuitive eating and indices of positive body image as worthy of further exploration as important factors which distinguish between healthy orthorexia and orthorexia nervosa.

LEVEL OF EVIDENCE

V, descriptive study.

Translation and validation of the Chinese version of the orthorexia nervosa assessment questionnaires among college students

PURPOSE

The main objective of the study was to translate, validate, and compare the Chinese ORTO scales (ORTO-15 and ORTO-R). The secondary objective was to assess factors that may be related with risk of orthorexia nervosa (ON).

METHODS

Two cross-sectional surveys were conducted on March-to-June 2021 for ORTO-15 and April 2022 for ORTO-R. ORTO questionnaires were translated into Chinese using the forward-backward-forward method. Exploratory factor analysis (EFA), discriminant validity and confirmatory factor analysis (CFA) were used to examine the construct validity of the questionnaires. The internal consistency was assessed using the Cronbach alpha coefficient and the test-retest reliability. Multivariate linear regression analysis was used to explore potential factors related with ON scores.

RESULTS

Totally, 1289 and 1084 eligible participants were included for assessment of ORTO-15 and ORTO-R, with the mean age of 20.9 ± 2.0 years and 21.0 ± 2.3 years. The internal consistency of Chinese ORTO-15 scale and ORTO-R scale were both satisfactory (α = 0.79, ICC = 0.79; α = 0.77, ICC = 0.82). However, all ORTO-15 models showed a poor fit using CFA whereas the ORTO-R was characterized by acceptable goodness-of-fit. Multivariate linear regression indicated that physical activities and mental disorders were positively associated with ON risk assessed by both ORTO-R and ORTO-15.

CONCLUSION

The Chinese ORTO-R scale was a more reliable tool to screen for ON tendencies than the Chinese version of ORTO-15. Mental disorders and physical activities might be associated with the increased ON risk.

LEVEL OF EVIDENCE

Level V (descriptive cross-sectional study).

The association between social media addiction and orthorexia nervosa, eating attitudes, and body image among adolescents

AIM

This study was planned to determine the relationship between social media addiction and orthorexia nervosa (ON), eating attitude and body image among adolescents.

METHOD

This cross-sectional study was conducted with 1232 high school-going adolescents. Data were collected using the Social Media Addiction Scale for Adolescents, Eating Attitude Test-26 (EAT-26), Body Image Scale (BIS) and ORTO-11 questionnaire.

RESULTS

Social media addiction levels were higher in girls than in boys (p < 0.05). Multiple linear regression analysis showed that a better body image was associated with lower social media addiction scores (β =  - 0.268, p < 0.001). Social media addiction was significantly associated with a greater risk of eating behavior disorders (OR: 1.07, 95% Cl: 1.04-1.10) and ON tendency (OR: 1.02, 95% Cl = 1.00-1.04). Adolescents who stated that they always or often read nutrition-related posts on social media had an increased likelihood of eating behavior disorder risk (OR: 6.77, 95% CI: 3.84-11.94) and ON tendency (OR: 5.49, 95% CI: 3.39-8.88).

CONCLUSION

This study demonstrated that social media addiction was associated with a higher eating behavior disorder risk, ON tendency and lower body image. Moreover, frequent reading of posts about nutrition on social media was positively associated with ON tendency and eating behavior risk. These results highlight that adolescents should be educated about social media use and its content to minimize the negative effects of constant exposure to unrealistic body images and nutrition-related misinformation and reduce the risk of eating disorders and ON among adolescents. Level of evidence Level V, cross-sectional descriptive study.

No elevated levels of orthorexic eating behavior in a sample of adults with allergies and food intolerances

PURPOSE

To compare orthorexic eating behavior in a sample of adults with and without self-reported allergies and food intolerances.

METHODS

N = 52 individuals with and n = 102 individuals without self-reported allergies and food intolerances (80% with medical diagnosis; in total 74.6% female, 23.7% male; age: M = 28.13, SD = 11.96 years) completed an online survey with the Düsseldorf Orthorexia Scale and answered several questions regarding their allergies/intolerances.

RESULTS

The groups did not differ in their orthorexic eating behavior. In the sample of individuals with allergies/intolerances, orthorexic eating behavior correlated with the perceived severity of the allergic symptoms and the number of consequences that the allergies had for eating behavior.

CONCLUSIONS

In line with previous findings, orthorexic eating behavior does not seem to be elevated in individuals with allergies/intolerances. However, focusing on a healthy diet despite adverse food reactions and experiencing a number of allergy-related consequences for one's eating behavior might be associated with orthorexic eating behavior.

LEVEL OF EVIDENCE

III, case-control analytic study.

Conceptualisations of health in orthorexia nervosa: a mixed-methods study

PURPOSE

Limited research has explored conceptualisations of health and healthy eating in orthorexia nervosa (ON). This mixed-methods study aimed to investigate how 'health' and 'healthy eating' are conceptualised by individuals at risk for ON. This study examined the potential relationships between health anxiety, beliefs about health controllability and orthorexic symptomatology in our broader sample.

METHODS

A total of 362 participants took a survey on health anxiety (measured with the HAQ), beliefs about the controllability of one's own health (IMHLC) and ON symptomatology (E-DOS and EHQ). Participants 'at risk' for ON (n = 141), also completed an online qualitative survey about conceptualisations of health and healthy eating. Qualitative data were analysed using thematic analysis (part A). The PROCESS macro for SPSS was used for the quantitative analysis (part B).

RESULTS

Conceptualisations of health and healthy eating were complex. Four themes were generated from our qualitative data: 'health is more than thin ideals', 'healthy food equals healthy mind', 'a body that works for you' and 'taking control of your body'. Our quantitative analysis revealed that health anxiety and beliefs in health controllability independently predicted ON symptomatology.

CONCLUSION

A richer understanding of what health means in the context of ON is important, given the centrality of this concept to the proposed classification of this disordered eating style. Our findings highlight that both health anxiety and health controllability are important targets for future investigation, given their potential relevance to the aetiology and treatment of ON.

LEVEL OF EVIDENCE

Level V, based on a descriptive study.

College students' perceptions of individuals following popular diets and individuals with Orthorexia Nervosa

Dietary trends, such as "clean eating" and the ketogenic diet, are popular among young adults. However, very few studies have investigated perceptions of individuals who reportedly adhere to specific popular diets, despite research indicating that people ascribe more positive attributes to individuals described as healthy eaters. Given these diets' popularity, and the potential harm that comes from following them, it seems important to understand college students' perceptions of these eating patterns. This study investigated female undergraduates' (n = 463) perceptions of vignette characters described as adhering to specific dietary practices, including three popular diets (Clean Eating, Keto, and Intermittent Fasting), the rigid healthy eating pattern, Orthorexia nervosa (ON), and a nondieting control. Characters described as adhering to Clean Eating were viewed most positively, followed by individuals following the Ketogenic diet or nondieters. Characters following an Intermittent Fasting diet, and those with ON were viewed most negatively. Findings support the idea that perceptions of individuals are associated with their adherence to specific popular diets. Future research should investigate potential links among dieting behavior and impression management.

Connecting a health-focused self-concept with orthorexia nervosa symptoms via fear of losing control over eating unhealthy food and disgust for unhealthy food

PURPOSE

Orthorexia nervosa (ON) involves a maladaptive preoccupation with healthy eating through strict dietary rules that negatively affect physical and mental health. Recent evidence suggests that ON symptoms may stem, in part, from having a health-focused self-concept (i.e., overvaluing the importance of health for self-definition and self-worth). Herein, fear of losing control over eating unhealthy foods and disgust for unhealthy foods were examined as potential mediators of the association between health-focused self-concept and ON symptoms.

METHODS

The parallel mediation model was tested using a community sample of people who believe they are currently following a healthy eating diet plan and/or believe they are leading a healthy eating lifestyle (N = 442). Participants were recruited from Amazon's Mechanical Turk and completed a questionnaire battery that included the Health-Focused Self-Concept Scale, questionnaires assessing fear of losing control over eating unhealthy food and disgust with unhealthy food, and the Orthorexia Nervosa Inventory.

RESULTS

As expected, a health-focused self-concept was indirectly and positively associated with ON symptoms via fear and disgust.

CONCLUSION

The findings conceptually replicate and extend prior research on anorexia nervosa supporting the transdiagnostic utility of a focused self-concept, fear of losing control, and disgust across eating disorders.

LEVEL OF EVIDENCE

Level V, cross-sectional descriptive study.

Food addiction, orthorexia nervosa and dietary diversity among Bangladeshi university students: a large online survey during the COVID-19 pandemic

PURPOSE

Maladaptive eating behaviors like food addiction (FA) are common among students, and orthorexia nervosa (ON) is being evaluated as a new condition among eating disorders (EDs). Moreover, dietary diversity (DD) is recognized as an important component of a healthy diet. Thus, the current study sought to examine the prevalence of ON and FA as well as the factors associated with ON, FA, and DD among university students in Bangladesh during the COVID-19 pandemic.

METHODS

Four-thousand-and-seventy-six students were recruited and completed an online survey consisting of the Bratman Orthorexia test, the modified Yale Food Addiction Scale, and a questionnaire based on the Food and Agriculture Organizations' guidelines. Inferential statistics, bivariate and multivariable linear regression were used for analyzing data.

RESULTS

ON and FA were observed in 1.7% and 7.5% of participants, respectively, with 43.8% exhibiting Health Fanatic eating attitude. The mean DD score was 5.96 (SD = 1.56). Students with ON consumed more legumes, nuts, seeds, and vegetables including dark green leafy vegetables whereas students with FA consumed more organ meats and eggs. Students who were older-aged, married, formerly smoked, had fitness goals, and had guilty feelings about violating food rules were more likely to have ON, whereas those who were female, were married, actively smoked, and were overweight and obese were more likely to have FA.

CONCLUSIONS

The findings suggest that students from Bangladesh are at risk of FA, and less so for ON. These entities and low DD deserve more research attention in Bangladesh to increase awareness and ensure appropriate interventions.

Association between religiosity and orthorexia nervosa with the mediating role of self-esteem among a sample of the Lebanese population - short communication

BACKGROUND

Orthorexia Nervosa is not yet classified as an eating disorder albeit it can be found in different populations. This condition can be characterized by a preoccupation with the quality of food, accompanied by obsessive thoughts regarding eating behaviors, leading to malnutrition. Previous associations have been reported between high levels of eating disorders and lower levels of self-esteem; where individuals have low self-esteem due to the pressured felt to fit the norms of society in beauty standards. The aim of the present study was to evaluate the relationship between religiosity and orthorexia nervosa via either trait or state self-esteem.

METHODS

This study was conducted between September 2021 and February 2022 and included 428 participants from all Lebanese governorates. The Teruel Orthorexia Nervosa scale was used to measure orthorexia nervosa. The following scales state self-esteem and religiosity were used to measure self-esteem.

RESULTS

Sociodemographic characteristics (age, gender, marital status, household crowding index, body mass index and education) were entered in the mediation model as confounding variables. Higher religiosity was significantly associated with higher state self-esteem (Beta = 0.07), while higher state self-esteem was significantly associated with lower identification of those that exhibited ON tendencies or symptoms (Beta= -0.11).

CONCLUSION

A high state self-esteem was correlated with a lower level of orthorexia nervosa. Higher religiosity was shown to be associated with higher self-esteem, which in turn was associated with a decrease in the scores of orthorexia nervosa.

Disordered eating and the meat-avoidance spectrum: a systematic review and clinical implications

PURPOSE

Meat avoidance has long been thought to be related to eating psychopathology; however, research does not necessarily support this notion. Furthermore, commonly used eating disorder scales may be picking up on normal meat-avoiding behaviours in vegetarians and vegans. As such, we systematically reviewed the association between vegetarianism, veganism, and disordered eating, and reviewed the psychometric properties of eating disorder scales for use in these populations.

METHODS

We searched electronic databases MEDLINE, PsychINFO, and CINAHL for literature published until June 2021.

RESULTS

Forty-eight studies met eligibility criteria, with no consensus as to whether meat avoidance was associated with higher rates of disordered eating. Most studies reported a significant positive association with both vegetarianism and veganism, and orthorexia nervosa. Six studies provided evidence for the use of eating disorder measures in vegetarians and vegans, reporting poor psychometric fit among all scales.

CONCLUSION

This systematic review highlights the extent to which vegetarians and vegans have been highly understudied, with limited research suggesting higher levels of orthorexia nervosa behaviours in vegetarians and vegans. Furthermore, our results provide tentative evidence that the factorial validity of commonly used eating disorder scales, such as the EDE-Q, may be poor in vegans.

LEVEL OF EVIDENCE

Level I, systematic review.

A comparative study of orthorexia between premenopausal, perimenopausal, and postmenopausal women

PURPOSE

Studies suggested that menopause is a period of vulnerability for disordered eating behaviors, but whether menopause could be linked to orthorexia nervosa (ON) remains unexplored.

METHODS

A sample composed of 709 women aged between 30 and 71 years (mean age = 43.08 years, SD = 9.24) answered self-administered questionnaires assessing ON (Düsseldorfer Orthorexia Skala, DOS), body image, self-esteem, and psychopathological symptoms. The sample included a Premenopause group of 441 women reporting regular menses, a Perimenopause group of 94 women reporting the recent onset of amenorrhea or menstrual irregularities, and a Postmenopause group of 174 women reporting amenorrhea of natural onset for more than 12 months.

RESULTS

Group comparison using analysis of covariance with age as covariate showed that ON scores were statistically higher in the two groups of participants dealing with menopause (Peri- and Postmenopause) when compared with women not yet concerned by menopause (Premenopause). A Kendall's tau-b correlation performed between the menopausal status (Pre, Peri, or Postmenopause) and DOS categories (No ON; At risk of ON; Presence of ON) showed a weak but statistically significant positive correlation between the menopausal group and DOS categories (tau-b = 0.136, p < 0.001). In addition, Fisher's exact tests indicated that the percentages of participants in the "At risk of ON" and "Presence of ON" categories were statistically higher in the Postmenopause group in comparison with the Premenopause group (p < 0.001). Depressive symptoms were statistically higher in the Peri- and Post-groups, while anxiety symptoms were stronger in the Peri-group when compared with the Pre-group.

CONCLUSIONS

This study shows an increase of ON in women concerned with menopause, suggesting the existence of a relationship between menopause and ON. Further studies are necessary to identify factors involved in this association.

LEVEL OF EVIDENCE

Descriptive (cross-sectional) study, level V.

The dark triad moderates the association between orthorexia nervosa and relationship (dis)satisfaction

PURPOSE

Past research has revealed a link between orthorexia nervosa (ON) and relationship dissatisfaction, which has in turn been found to be correlated with the Dark Triad traits. The current study investigated the association ON has with seeking out relationships and with relationship satisfaction, while also assessing a potential moderating effect of the Dark Triad.

METHODS

Recruited from Reddit forums, 788 adults (74% female, 67% White, 63% aged 25-30 years) completed an online survey with the Orthorexia Nervosa Inventory (ONI), Short Dark Triad (SD3), and Relationship Assessment Scale (RAS).

RESULTS

Greater ON symptomatology was associated with greater levels of all aspects of the Dark Triad (Machiavellianism, narcissism, and psychopathy), as well as with lower levels of relationship satisfaction (among those in committed romantic relationships) and a lower likelihood of seeking new romantic relationships (among single participants). A regression analysis revealed that the Dark Triad moderated the association between ON and relationship satisfaction, whereby this association was not significant at high levels of the Dark Triad.

CONCLUSION

The current research highlights that at low and medium levels of the Dark Triad, greater ON symptomology is associated with lower levels of satisfaction in romantic relationships.

LEVEL OF EVIDENCE

Level V, descriptive cross-sectional study.

Orthorexia nervosa, mindful eating, and perfectionism: an exploratory investigation

PURPOSE

Research has drawn associations between Mindful Eating (ME) and perfectionism in the aetiology and treatment of eating disorders (ED), but understanding into the relationship between these factors and Orthorexia nervosa (ON) is limited. The purpose of this research is to explore the relationship between perfectionism, ME, and ON.

METHOD

Participants (n = 670) completed the Düsseldorf Orthorexia scale, the Mindful Eating Behavior scale, and the Big-Three Perfectionism scale Short-form, to reveal the relationship between ON, ME, and perfectionism. The relationship was assessed using correlational and regression analyses.

RESULTS

A positive association was observed between perfectionism and ON. Moreover, perfectionism demonstrated a significant negative correlation with three out of four ME facets, with "eating without distraction" displaying the highest correlation. The "eating with awareness" facet of ME demonstrated a significant relationship with ON, in a negative direction. An unexpected relationship was observed between the focused eating facet of ME and ON, with a positive association being found. A further regression analysis revealed both perfectionism and ME to predict orthorexic tendencies.

CONCLUSION

These findings identify a relationship between ON, ME, and perfectionism. It offers suggestion for the complexity of ME, and how it should be recognised by its different components, estimating a differential predictability and estimation of ON. Further research is required to clarify the direction of causality in the relationships observed, to inform the clinical diagnoses and intervention of ON.

LEVEL OF EVIDENCE

Level V, cross-sectional descriptive study.

Negative body image components as risk factors for orthorexia nervosa: Prospective findings

Emerging theoretical and empirical evidence indicates that negative body image might be implicated in the onset or maintenance of ON symptoms. However, existing research investigating associations between negative body image and ON is limited to cross-sectional designs and has failed to consider the independent role of distinct components of body image. To overcome these limitations, the present study examined the prospective associations between five components of body image (i.e., overvaluation, dissatisfaction, preoccupation, body checking, and body image avoidance) and ON symptoms in community-based adult women. Participants were assessed at baseline and at a three-month follow-up, with 558 women included in the final analyses. After adjusting for baseline ON symptoms, higher scores on each of the five body image components at baseline significantly predicted greater increases in ON symptoms in univariate analyses. However, in multivariate analyses, overvaluation with weight and shape was the only component of body image to uniquely predict ON symptoms. Findings suggest that certain components of negative body image may increase the risk for ON symptoms. Findings also lend support to recent proposals that ON may be better viewed as a variant of an existing eating disorder, given that both appear to share similar underlying risk factors.

Exercise dependence and orthorexia nervosa in Crossfit: exploring the role of perfectionism

Physical exercise and healthy diet have a positive effect on health. However, the pathological dimension of both behaviors, namely exercise dependence and orthorexia nervosa, can lead to negative results. So far, literature on these behaviors in the context of high-intensity sports is limited. The present study aims for investigating exercise dependence and orthorexia nervosa in a sample of Crossfit athletes, as well as examining the mediating role of perfectionism in their manifestation.The sample consisted of 110 people who attended Crossfit programs and 131 active gym members. The Exercise Dependence Scale was used to assess exercise dependence, the ORTO-15 to assess orthorexic behavior and the Almost Perfect Scale to evaluate perfectionism.19.8% of crossfitters and 3.8% of gym members were at risk for exercise dependence. 11.7% of participants in the Crossfit group and 10% of participants in the control group had orthorexic symptoms. An association was found between the scores on the two behaviors. In addition, the dimension of perfectionism high standards predicted obligatory exercise and orthorexia nervosa, while the dimension of discrepancy predicted only exercise dependence.The study suggests that exercise dependence is more evident in Crossfit compared to gym athletes and may be accompanied by orthorexic symptoms. Orthorexia nervosa is a noticeable phenomenon in the population of active exercisers. Perfectionism is a risk factor for obligatory exercise and orthorexia. A more demanding selection of target populations is encouraged in order to better understand exercise dependence, orthorexia nervosa and their personality background.

Individual differences in selective attentional bias for healthy and unhealthy food-related stimuli and social identity as a vegan/vegetarian dissociate "healthy" and "unhealthy" orthorexia nervosa

Previous work identified the operation of an attentional bias (AB) towards healthy food related stimuli among those with increasing tendencies towards orthorexia nervosa (ON) using a modified Stroop task. The current work aimed to replicate and extend our understanding of this effect by incorporating alternative measures of AB (i.e., the dot probe task) and ON (i.e., the Teruel Orthorexia Scale [ToS]) in a sample of self-defined vegans/vegetarians. The theoretical assertion of the ToS is the conceptual broadening of orthorexia with differentiable dimensions - one characterised as a "healthy" preoccupation with healthy food/eating patterns (HeOr) and the other by a more underlying pathology (OrNe). This study also aimed to examine the pattern of responding across these two dimensions according to factors known to predict ON. Eighty-six participants (mean age = 33.0 years; 20 males, 66 females) completed measures of obsessive compulsivity, perfectionism, state/trait anxiety and ToS as well as a dot probe designed to measure AB for healthy and unhealthy-related food stimuli, threat ratings of each of words utilised and perceived identity centrality as a vegan/vegetarianism. Results showed a dissociation of predicted determinants for "healthy" ON (HeOr) and pathological ON (OrNe). HeOr was predicted by increasing identity centrality whereas OrNe was predicted by increased OCD and perfectionism, and increased interference for healthy-related food words (in particular slowed disengagement) and not unhealthy related food words. Threat-related ratings of unhealthy food words was shown to be common across both dimensions. This pattern highlights cognitive and individual differences-based correlates of pathological and non-pathological ON.

Orthorexia nervosa and dieting in a non-clinical sample: a prospective study

PURPOSE

Orthorexia Nervosa (ON) is characterised by excessive attention to a dietary regimen perceived as healthy. A critical factor in the distinction between ON and other eating disorders (EDs) is the dichotomy of quality-versus-quantity of food intake. We investigated whether specific types of diet or dieting frequency are associated with orthorexic features, explored the overlap between ON and EDs symptoms, and examined which constructs are predictive of ON after 6 months.

METHODS

A total of 1075 students (75.1% female, mean age 20.9) completed a set of questionnaires assessing Orthorexia, Eating Disorders, Obsessions and Compulsions, Anxiety and Depression; 358 individuals (79.9 female, mean age 20.9) agreed to participate in the study and completed the same questionnaires after 6 months. Different regression models were defined to investigate our hypothesis.

RESULTS

Findings suggest that ON is associated with the number and type of diets followed over a lifetime. Moreover, participants with EDs, body dissatisfaction, or a dysfunctional idea of thinness are more likely to report a greater degree of ON features. After 6 months, the best predictors of ON characteristics are the same ON characteristics assessed at the first administration, with a significant role in the ideal of thinness.

CONCLUSIONS

ON is more frequent in individuals with a previous diagnosis of EDs and in individuals who followed a restrictive diet or a vegan/vegetarian one; the number of lifetime diets, beliefs, and behaviors related to the ideals of thinness or body dissatisfaction is common features of ON. Moreover, considering that having ON features in the past is the best ON predictor in the present, we can presume that ON is a construct stable over time.

LEVEL OF EVIDENCE

Level IV: Evidence obtained from multiple time series analysis such as case studies. (NB: Dramatic results in uncontrolled trials might also be regarded as this type of evidence).

Orthorexia nervosa and executive dysfunction: symptomatology is related to difficulties with behavioral regulation

PURPOSE

This research explored whether orthorexia nervosa is associated with deficits in executive function.

METHODS

A non-clinical sample of participants (n = 405; 80% women, 53% white, mean age = 24, mean body mass index = 25) completed the Orthorexia Nervosa Inventory (ONI) and the Behavior Rating Inventory of Executive Function-Adult version (BRIEF-A).

RESULTS

ONI scores were weakly to moderately correlated with all BRIEF-A scales (p < 0.001 for eight scales, p < 0.05 for one scale), exhibiting the greatest correlations with the scales assessing behavioral regulation: Emotional Control (r = 0.34), Inhibition (r = 0.30), Set Shifting (r = 0.25), and Self-Monitoring (r = 0.28). Hierarchical regression analyses revealed that eight of these nine relationships remained significant (p < 0.001 for five scales including all behavioral regulation scales, p < 0.01 for two scales, p < 0.05 for one scale) after controlling for demographic variables (e.g., gender, body mass index, age, education level) and diagnoses of an eating disorder, obsessive-compulsive disorder, attention deficit/hyperactivity disorder, autism, and learning disability.

CONCLUSION

These findings suggest that, despite unique manifestations, orthorexia and anorexia may possess an overlapping neuropsychological profile marked by deficits in executive function, which may negatively impact daily life.

LEVEL OF EVIDENCE

Level V, descriptive cross-sectional study.

Orthorexia nervosa and its association with narcissism in fitness center users

PURPOSE

Orthorexia nervosa (ON) is an eating behavior where patients obsessively try to reach health through "purity" of food. Narcissism is a personality trait characterized with the self-belief of grandiosity, importance and need of appreciation. Both of these conditions are connected through self-image in way of reaching perfection through health and body image, whereas one of the ways for reaching it is exercising. This cross-sectional study aimed to investigate ON and its possible association with narcissism in fitness center users.

METHODS

The study included 1017 fitness center users and three questionnaires were used for the assessment: general information, ORTO-R and Narcissistic personality inventory-13 (NPI-13).

RESULTS

There was a significant negative correlation (r = - 0.467, p < 0.001) between the ORTO-R score and the NPI-13 score. Comparison of the ORTO-R score between different durations of using a fitness center showed statistically significant differences (H = 134.72, p < 0.001). The subjects who are using the fitness center for less than 1 year have the highest ORTO-R score, while those who are using it 1-3 years have the lowest ORTO-R score. Moreover, multiple linear regression showed that ORTO-R score retained significant association with NPI-13 (β ± SE, - 0.416 ± 0.026, p < 0.001) and the duration of using a fitness center (0.576 ± 0.068, p < 0.001) after model adjustment for age and BMI.

CONCLUSION

These results are implying that fitness center users could possibly be vulnerable of developing ON and that there is a strong association between ON and narcissism in this population. However, future larger-scale longitudinal studies are needed to address these findings.

LEVEL OF EVIDENCE

Level V, cross-sectional survey-based study.

The effect of orthorexia nervosa on food label reading habits among university students

PURPOSE

This observational cross-sectional study aimed to evaluate university students' food label reading habits with and without orthorexia nervosa (ON) tendency.

METHODS

Data were collected online with a questionnaire. The questionnaire form included sociodemographic variables, the ORTO-11 scale, the reading frequency of some components on the food label, and the evaluation of some opinions about the food label. The obtained data were evaluated with SPSS 25.0 statistical package program and GraphPad Prism program.

RESULTS

A total of 674 university students (mean age: 21.03 ± 2.43 years), 537 women (79.7%) and 137 men (20.3%) were included in the study. It was determined that individuals with ON tendency read some nutrients, content information, serving size, health information, instructions for use, additives and brand more frequently compared to individuals without ON tendency (p < 0.05). At the same time, it was determined that individuals with ON tendency were more likely to agree with the idea that reading food labels is important for a healthy diet, compared to individuals with normal eating behavior (p < 0.001).

CONCLUSION

The study findings show that individuals with ON tendency have a higher habits of reading food labels compared to individuals with normal eating behavior. To reach a decision on this issue and to determine the diagnostic criteria for ON, future studies should be conducted on different groups and samples with higher participation, as well as studies using different screening tools to determine the tendency for ON.

LEVEL OF EVIDENCE

V, Cross-sectional descriptive study.

Validation of the Arabic version of the ORTO-R among a sample of Lebanese young adults

BACKGROUND

Within the literature, there is a variety of different measurement methods for orthorexic behaviours. The ORTO-15 is the one that attracted most research attention. Many scholars criticized the ORTO-15 for its unstable factor structure and over-estimation of the prevalence of orthorexia nervosa. For this purpose, Rogoza and Donini (Eat Weight Disord 26:887-895, 2020) re-assessed the original data and created a new tool, ORTO-R. The development of the ORTO-R theoretically solved many ambiguities associated with its parent measure. However, to date, no study, including the original one, tested the validity of the ORTO-R, leaving its utility somewhat speculative.

METHODS

We gathered data from 363 Lebanese individuals, who answered the ORTO-R questions and a set of measures used to determine the validity of the scale (eating attitudes, perfectionism, body dissatisfaction, self-esteem, anxiety, and depression). Within this study, we analysed the internal consistency of the scale and different aspects of its validity (factorial, convergent, and divergent).

RESULTS

Results supported all expectations; we successfully confirmed a one-factor measurement model of the ORTO-R, which appeared to be internally consistent. The ORTO-R score correlated positively to other orthorexic behaviours as well as to disordered eating attitudes, perfectionism, anxiety, and depression. It was also negatively related to self-esteem, but was unrelated to body dissatisfaction.

CONCLUSION

The ORTO-R may be deemed as a valid instrument for the assessment of orthorexic behaviours.

LEVEL OF EVIDENCE

V: Opinions of authorities, based on descriptive studies, narrative reviews, clinical experience, or reports of expert committees.