A consensus document on definition and diagnostic criteria for orthorexia nervosa

Validity and reliability of the Turkish version of the Düsseldorf orthorexia scale (TR-DOS) and the prevalence of orthorexia nervosa among Turkish university students

Orthorexia Nervosa (ON) is characterized by an excessive preoccupation with healthy foods accompanied by the avoidance of self-declared unhealthy options, yet it remains unrecognized in major diagnostic guidelines. The Düsseldorf Orthorexia Scale (DOS), a 10-item self-report questionnaire using a four-point Likert scale, assesses the obsession with healthy eating. This study evaluates the reliability and validity of the TR-DOS in the Turkish context and estimates the prevalence of ON among university students. Several studies have shown that translating the DOS into various linguistic groups may exhibit different models of DOS scores. However, the psychometric properties and model fit of the DOS have not yet been investigated in Turkish-speaking populations; to address this gap, we assessed the psychometric properties of a Turkish translation of DOS (TR-DOS) in a sample of 425 university students in Türkiye. The TR-DOS revealed a 7.3% ON prevalence and a 9.0% risk of development. Weak positive associations were observed between TR-DOS total scores and BMI (r = 0.152, p = .002). Exploratory Factor Analysis confirmed the validity of TR-DOS (KMO = 0.867) with satisfactory reliability (Cronbach's alpha = 0.854). Confirmatory Factor Analysis indicated an acceptable fit for the TR-DOS model (χ2/df = 3.127, RMSEA = 0.071, SRMR = 0.046, IFI = 0.955, CFI = 0.955, GFI = 0.956, TLI = 0.932). Moderate positive correlations were found between TR-DOS and eating disorder measures (EAT-26: r = 0.428, p < .001; EDE-Q-13: r = 0.430, p < .001). The findings demonstrated that the TR-DOS is both culturally appropriate and psychometrically adequate for Turkish university students. It is a reliable and valid instrument for assessing obsessive healthy eating behaviors in this population.

A psychometric examination of the cognitive flexibility scale and its association with Orthorexia Nervosa

BACKGROUND

The Cognitive Flexibility Scale (CFS) is a 12-item self-report questionnaire designed to assess cognitive flexibility. Despite its widespread use, its psychometric properties have yet to be evaluated in the Italian context. Furthermore, while cognitive flexibility has emerged as a central correlate in Feeding and Eating Disorders, only a limited number of studies have investigated its association with Orthorexia Nervosa (ON), a clinical condition characterized by a pathological fixation with healthy eating. The present study aimed to fill these two knowledge gaps.

METHODS

A total of 803 participants (Mage = 33.89, SD = 9.44; 68.6% females) were enrolled in the investigation. The sample was randomly split into two subsamples: the first one for examining the psychometric properties of the CFS, and the second one for evaluating its association with ON symptoms. Participants completed self-report questionnaires assessing the constructs under investigation.

RESULTS

Confirmatory factor analysis revealed a global dimension of cognitive flexibility, alongside a method factor accounting for covariance arising by reverse-worded items. The CFS, which was factorially invariant across genders, yielded a reliable total score (ω = 0.834) and provided evidence of convergent and criterion-related validity. Importantly, structural equation modelling showed that cognitive flexibility was negatively associated with emotional distress resulting from violations of orthorexic dietary rules (β = -0.279, p < .001).

CONCLUSIONS

The CFS demonstrated to be a psychometrically robust instrument in the Italian context. Moreover, cognitive flexibility may be an important treatment target for mitigating the distress derived from ON symptoms, informing the development of future therapeutic approaches.

Excessive health behaviors in sports: links of orthorexia nervosa and exercise addiction with well-being, exercise activity in sports categories, and gender effects

Background and aims

Orthorexia nervosa (OrNe), the obsessive fixation on healthy eating, and exercise addiction (ExAdd) have been discussed as correlated excessive health behaviors with potential mental health implications. The role of gender-and sports-specific differences remains unclear. This study aimed to investigate the links of ExAdd, OrNe, and the non-pathological interest in healthy eating (healthy orthorexia; HeOr) with well-being and exercise activity in various sports, considering gender effects.

Methods

Data from two cross-sectional online surveys were combined (N = 1,064, 73.5% women, age = 28.23 ± 11.09), measuring ExAdd (Exercise Addiction Inventory Revised), OrNe and HeOr (Teruel Orthorexia Scale), well-being (WHO-5 Well-Being Index), exercise activity and sports (Physical Activity, Exercise, and Sport Questionnaire).

Results

Well-being correlated with OrNe among women (r = -0.291) and not meaningfully with ExAdd and HeOr among men. Gender differences were not significant, except for the higher correlation of ExAdd with exercise activity in resistance and fitness sports among men. Regression analyses revealed that exercise activity, especially in health, resistance and fitness sports, was linked to HeOr, but not to OrNe. ExAdd was associated with exercise activity in endurance, resistance and fitness, ball and team, antigravitation, technical, aesthetic sports, and martial arts.

Discussion

Men's well-being may slightly benefit from ExAdd and an interest in healthy eating, while obsessive healthy eating may reduce women's well-being. Although exercise activity is associated with ExAdd in a wide variety of sports, it does not explain the link between ExAdd and OrNe. Preventive measures should consider gender-specific risks in excessive health behaviors.

Orthorexia nervosa tendencies and risk of eating disorders among culinary arts students: A comparative study with dietetics students

BACKGROUND

Students pursuing food-related academic fields such as dietetics have higher orthorexia nervosa (ON) tendencies and are at a greater risk of developing eating disorders (EDs). However, there is limited research available on ON tendencies and on the risk of EDs in the culinary arts field, which also revolves around food. The present study explored ON tendencies and the risk of EDs among culinary arts students and compared them with those of dietetics students.

METHODS

A cross-sectional study was conducted in France, using the eating habits questionnaire (EHQ) to measure ON tendencies, and the SCOFF as well as the eating disorders examination questionnaire (EDEQ) to evaluate the risk of EDs and ED symptoms. The study also included questions about sports practice. In total, 267 students participated in the study, including 144 culinary arts students (51 women, 92 men and one other) and 123 dietetics ones (106 women, 15 men and two others).

RESULTS

Culinary arts students exhibited similar means of EHQ scores as dietetics ones (32.99 vs. 33.34) but higher SCOFF scores (52.8% vs. 39.8%). In addition, a gender difference was evidenced: women in culinary arts showed higher EHQ, SCOFF and EDEQ scores than men in culinary arts. Linear regression models showed no effect of the type of academic field (culinary arts vs. dietetics) on the EDEQ score but revealed effects of gender, body mass index and hours of sports practice.

CONCLUSIONS

The study emphasises the need to monitor culinary students and implement interventions to prevent EDs. It also suggests a correlation between food-related education and the risk of EDs, which requires further research.

Adverse childhood experiences and profiles of healthy orthorexia versus orthorexia nervosa: towards an explanatory model of orthorexia as a multidimensional eating style

BACKGROUND

Orthorexia is a complex phenomenon comprising distinct dimensions, including orthorexia nervosa (ON) and healthy orthorexia (HO). However, little is known about the factors influencing these dimensions, their disparities, and the psychological factors underlying orthorexia behaviours.

OBJECTIVES

This study aims to explore ON versus HO dimensions and the predictive role of adverse childhood experiences (ACEs) in a nationally representative sample of Polish individuals. In addition, we aim to investigate the mediating roles of alexithymia, embodiment, and experiential avoidance levels in this association.

METHODS

A representative sample of Polish adults (n = 3557) participated in this study. Dimensions of orthorexia (HO, ON) were assessed using the Teruel Orthorexia Scale, while ACEs were evaluated using the Adverse Childhood Experiences Questionnaire. Levels of alexithymia were measured using the Toronto Alexithymia Scale, experiential avoidance through the Acceptance and Action Questionnaire, and embodiment intensity via the Experience of Embodiment Scale.

RESULTS

Cluster analysis identified two distinctive orthorexia profiles in the whole sample, i.e., HO (n = 469) and ON (n = 1217), alongside three intermediate HO/ON profiles (n = 1871). The number of ACEs predicted ON tendencies as opposed to HO behaviours in participants. The mediating role of alexithymia, experiential avoidance, and embodiment in the association between ACEs and ON was also observed.

CONCLUSIONS

Our study suggests that orthorexia is a multidimensional eating style shaped by socio-cultural factors. Adverse childhood experiences may be related to ON behaviours by mediating psychological factors such as experiential avoidance, alexithymia, and embodiment. Effective education and collaborative support are necessary for addressing ON tendencies.

Obsessive-compulsive disorder with compulsive exercise leading to intensive care treatment in an adolescent male: a case report

Obsessive-compulsive disorder (OCD) and eating disorders (ED) are compulsive disorders with overlapping symptoms. However, weight loss and over-exercise causing secondary medical complications are rarely seen in OCD. We report the case of a 15-year-old male who presented with atypical symptoms of OCD leading to severe medical compromise. Covid-19 related team sport restrictions led to compulsive exercise associated with intrusive thoughts. The onset of stress fractures limited exercise ability, prompting compensatory food restriction. Bradycardia, hypothermia and hypoglycaemia resulted from severe malnourishment and weight loss in the context of OCD. His weight was 85.8% of ideal body weight on admission, reflective of a weight 10-15 kg lower than his premorbid weight. During admission, he developed exercise-induced rhabdomyolysis with significantly elevated creatinine kinase and required intensive care unit treatment. Psychotropic medication included lamotrigine, olanzapine and high dose fluoxetine alongside cognitive-behavioural therapy. Medical stabilisation and weight restoration allowed discharge to an outpatient Child and Adolescent Mental Health Service. This atypical case of OCD highlights the potentially life-threatening risks associated with excessive exercise and malnutrition. This paper highlights the complexities of treatment in a patient who cannot adhere to bed rest and the differential diagnoses of anorexia nervosa, orthorexia nervosa and exercise addiction.

Psychometric Properties of Various Factorial Models of the ORTO-15 Tested With Brazilian Respondents

The ORTO-15 is a commonly used screening instrument for symptoms of Orthorexia Nervosa (ON), an obsessive overconcern with healthy eating. However, its limitations have been evidenced in several published factorial models. We analyzed the psychometric properties of seven different ORTO-15 factorial models using data from Brazilian adult participants (n = 1455; 71.4% women; M age = 29.5, SD = 8.9 years) from the country's five macro-regions who answered online questions for sample characterization and completed the Portuguese version of the ORTO-15 containing 15 items. We tested the fit of each model separately, analyzing data for men and women with separate confirmatory factor analysis, and using the Weighted Least Squares Mean and Variance Adjusted estimation method and goodness-of-fit indices. We also calculated the average variance extracted and the alpha ordinal and omega coefficients to analyze the convergent validity and reliability of the factors. None of the models tested presented adequate properties of validity and reliability. Although we found some acceptable reliability coefficients, they do not guarantee the validity of the data. Future investigators should be cautious when choosing the ORTO-15 for ON screening.

Orthorexia as an Eating Disorder Spectrum-A Review of the Literature

BACKGROUND

The purpose of this study is to compare and analyze research studies focused on orthorexia nervosa (ON) as a spectrum of eating disorders, and to summarize potential risk factors in different age and social groups. ON is characterized by an obsession with healthy eating, which leads to a restrictive diet and health problems.

METHODS

Due to a lack of comprehensive analyses, this review re-examined studies from 2006 to 2023, initially retrieving 53,134 articles. Upon refining the criteria and risk factors for eating disorders, 34 notable records were identified. These studies employed diagnostic tools such as ORTO and BOT, focusing on risk factors for ON.

RESULTS

Results indicate that individuals suffering from eating disorders, losing weight, exercising heavily, developing relationship problems, and suffering from body dysmorphic disorder are at high risk of developing ON. A significant correlation was found between ON, BMI, and gender, but not between ON and OCD. Interestingly, ON symptoms appear to overlap with those of other eating disorders, such as anorexia and bulimia, especially in terms of obsessive control over dieting and fear of gaining weight, indicating a close relationship between the two.

CONCLUSIONS

Interestingly, orthorexia nervosa may serve as a coping mechanism for anorexia, providing a sense of control. However, further research on its long-term effects is required.

The Impact of Social Media and Socio-Cultural Attitudes toward Body Image on the Risk of Orthorexia among Female Football Players of Different Nationalities

BACKGROUND/OBJECTIVES

Orthorexia Nervosa (ON) is an emerging behavioral pattern characterized by an obsessive focus on healthy eating. Despite its prevalence, ON lacks formal diagnostic criteria in major classification systems like the DSM-5 and the ICD-10. This study aims to investigate the impact of socio-cultural attitudes towards body image and the role of social media on the risk of ON among female football players from Poland, Turkey, and India. This study hypothesizes that socio-cultural pressures and media usage significantly influence the risk of developing ON, particularly in cultures more exposed to Western beauty ideals.

METHODS

The study was conducted from May to August 2024, employing the Computer-Assisted Web Interview method. A total of 142 female football players aged 16-36 from Poland, Turkey, and India participated. Data were collected using a structured questionnaire that included demographic information and health metrics, the Socio-Cultural Attitudes Towards Appearance Questionnaire, and the Duesseldorf Orthorexia Scale. Statistical analyses included an ANOVA, the Kruskal-Wallis test, the chi-square test, and Pearson's correlation coefficient.

RESULTS

The study found that nearly half of the participants were at risk of or presented with ON, with the highest prevalence being among Indian athletes. Statistically significant relationships were observed between the risk of ON and factors such as age, dietary exclusions, social media usage, and sources of nutritional information. However, no significant correlation was found between socio-cultural attitudes and the risk of ON, suggesting that other factors may play a more critical role.

CONCLUSIONS

While socio-cultural pressures and media use are contributing factors to the risk of ON, psychological factors and individual behaviors appear to be equally, if not more, significant. This study highlights the importance of targeted educational programs and psychological support for young athletes, with a focus on promoting healthy dietary practices and positive body image perceptions across varying cultural contexts. Additionally, the results suggest the need for further research into the specific psychological and behavioral mechanisms underlying ON.

Striving for the perfect diet? The mediating role of perfectionism in the relationship between obsessive compulsive symptoms and traits of Orthorexia Nervosa

BACKGROUND

Orthorexia Nervosa (ON) is a disordered eating style involving an unhealthy obsession with 'healthy' or 'clean' eating. Its aetiology is still poorly understood and is not yet recognised in diagnostic manuals. While ON has been associated with Obsessive Compulsive (OC) symptoms and perfectionism, no study to date has looked at the relationship between OC symptoms and ON tendencies via perfectionism, or the influence of two facets of perfectionism in this relationship, namely evaluative concern and achievement striving. Examining the potential role of perfectionism helps to understand the aetiology of ON as well as inform potential treatments tailored specifically for ON and comorbid OC symptoms.

METHODS

In this cross sectional study, we tested 507 participants (n = 70 males, n = 69 at risk of ON) on questionnaires measuring OC symptoms, perfectionism and ON symptoms. We ran two mediation analyses to look at the overall relationship between perfectionism and OC and ON symptoms (Model 1) as well as the specific contribution of evaluative concern and achievement striving in the relationship between OC and ON symptoms (Model 2).

RESULTS

We found that perfectionism partially mediated the relationship between OC and ON symptoms. Specifically, we found that while achievement striving and evaluative concern were associated with OC symptoms, only achievement striving was significantly associated with ON symptoms, mediating the relationship between OC and ON symptoms.

CONCLUSIONS

This study highlighted the role of one key facet of perfectionism (achievement striving) in the aetiology of ON. The role of achievement striving was indicated as a transdiagnostic construct explaining the link between ON and OC symptoms. These findings are discussed in terms of their implications for treatment models, specifically in terms of the potential role of targeting perfectionism in ON treatment.

Presence and characteristics of disordered eating and orthorexia in irritable bowel syndrome

INTRODUCTION

Orthorexia, a harmful obsession with eating healthily, may develop from illnesses characterized by dietary restriction, including irritable bowel syndrome (IBS) and eating disorders (ED). Evidence of disordered eating in IBS exists, but orthorexia has not been assessed. This cross-sectional study in adults (≥18 years) assessed presence and characteristics of disordered eating and orthorexia in IBS, compared to control subjects (CS) and ED.

METHODS

IBS participants met Rome IV, and ED participants met DSM-5 criteria. Disordered eating was assessed using "sick, control, one-stone, fat, food" (SCOFF, ≥2 indicating disordered eating), and orthorexia by the eating habits questionnaire (EHQ). Secondary measures included stress (PSS); anxiety (HADS-A); food-related quality of life (Fr-QoL), and dietary intake (CNAQ).

KEY RESULTS

In 202 IBS (192 female), 34 ED (34 female), and 109 CS (90 female), more IBS (33%) and ED (47%) scored SCOFF≥2 compared to CS (16%, p < 0.001, chi-square). IBS and ED had higher orthorexia symptom severity compared to CS (EHQ IBS 82.9 ± 18.1, ED 90.1 ± 19.6, and CS 73.5 ± 16.9, p < 0.001, one-way ANOVA). IBS and ED did not differ for SCOFF or EHQ (p > 0.05). Those with IBS and disordered eating had higher orthorexia symptom severity (EHQ 78.2 ± 16.6 vs. 92.4 ± 17.5, p < 0.001, independent t-test), worse symptoms (IBS-SSS 211.0 ± 78.4 vs. 244.4 ± 62.5, p = 0.008, Mann-Whitney U test), higher stress (p < 0.001, independent t-test), higher anxiety (p = 0.002, independent t-test), and worse FR-QoL (p < 0.001, independent t-test).

CONCLUSIONS AND INFERENCES

Disordered eating and orthorexia symptoms occur frequently in IBS, particularly in those with worse gastrointestinal symptoms, higher stress, and anxiety. Clinicians could consider these characteristics when prescribing dietary therapies.

Unveiling Anxiety Factors in Orthorexia Nervosa: A Qualitative Exploration of Fears and Coping Strategies

Orthorexia nervosa represents a controversial phenomenon in the realm of eating practices, characterized by an obsessive fixation on consuming only foods deemed 'healthy', and a preoccupation with food purity. While the existing literature has identified the presence of stressful behaviors among individuals with orthorexia, the precise factors and circumstances eliciting these stress-inducing emotions remain the subject of ongoing inquiry. This study aims to explore the triggers and situations that precipitate stressful beliefs and emotions among individuals who self-identify as preoccupied with healthy eating, as well as the coping mechanisms developed to manage these feelings. Through conducting one-to-one interviews with thirteen individuals, thematic analysis was employed to elucidate the nuances of their experiences. Participants articulated concerns regarding the contamination of foods available in supermarkets and restaurants, thereby prompting the meticulous selection of food sources and aversion to dining out. The prospect of trying new foods and engaging in social gatherings involving food emerged as anxiety-inducing scenarios, prompting individuals to adhere to monotonous dietary patterns and impose self-isolation. Additionally, medical appointments were perceived as stressful, driven by health concerns underpinning the adoption of stringent dietary practices. These findings underscore the spectrum of fears and coping mechanisms exhibited by individuals with orthorexia nervosa, which hold profound implications for their overall well-being.

Orthorexic tendency and its association with weight control methods and dietary variety in Polish adults: a cross-sectional study

The methods for controlling weight play a central role in formally diagnosed eating disorders (EDs) and appear to be important in the context of other nonformally recognized disorders, such as orthorexia nervosa (ON). These methods also have an impact on eating behaviors, including dietary variety. Our study aimed to: (i) assess the intensity of ON tendency by sex and BMI groups, (ii) evaluate the associations between ON tendency, weight control methods, and dietary variety, and (iii) determine the extent to which weight control methods and dietary variety contribute to the ON tendency among both females and males. Data were gathered from a sample of 936 Polish adults (463 females and 473 males) through a cross-sectional quantitative study conducted in 2019. Participants were requested to complete the ORTO-6, the Weight Control Methods Scale, and the Food Intake Variety Questionnaire (FIVeQ). Multiple linear regression analysis was employed to evaluate associations between ON tendency, weight control methods, and dietary variety. Females exhibited a higher ON tendency than males (14.4 ± 3.4 vs. 13.5 ± 3.7, p < 0.001, d = 0.25). In the regression model, the higher ON tendency was predicted by more frequent use of weight control methods, such as restricting the amount of food consumed, using laxatives, and physical exercise among both females and males as well as following a starvation diet in females, and drinking teas to aid bowel movements among males. Moreover, the higher ON tendency was predicted by higher dietary variety, lower age in both sexes, and higher level of education among males. However, there were no differences in ON tendency across BMI groups. In conclusion, the findings showed that ON tendency was predicted by a higher frequency of weight control methods commonly used by individuals with anorexia nervosa (AN) and bulimia nervosa (BN). The resemblance to these two EDs is also suggested by the higher intensity of ON tendency among females and younger people. However, the prediction of ON tendency by dietary variety indicates that the obsessive preoccupation with healthy eating may not be advanced enough to observe a decrease in the dietary variety among these individuals.

An Integrated Care Approach to Improve Well-Being in Breast Cancer Patients

BACKGROUND

Breast cancer (BC) treatment has recently been revolutionized by the introduction of newer targeted agents, that helped tailoring therapies around the single patient. Along with increased survival rates, a careful evaluation of diet, lifestyle habits, physical activity, emotional and psychological experiences linked to the treatment journey, is now mandatory. However, a true proposal for an omnicomprehensive and "integrative" approach is still lacking in literature.

METHODS

A scientific board of internationally recognized specialists throughout different disciplines designed a shared proposal of holistic approach for BC patients.

RESULTS

A narrative review, containing information on BC treatment, endocrinological and diet aspects, physical activity, rehabilitation, integrative medicine, and digital narrative medicine, was developed.

CONCLUSIONS

In the context of a patient-centered care, BC treatment cannot be separated from a patient's long-term follow-up and care, and an organized interdisciplinary collaboration is the future in this disease's cure, to make sure that our patients will live longer and better.

TRIAL REGISTRATION

NCT05893368: New Model for Integrating Person-based Care (PbC) in the Treatment of Advanced HER2-negative Breast Cancer (PERGIQUAL). Registration date: 29th May 2023.

Relation between orthorexia nervosa and healthy orthorexia: A latent profile analysis

Orthorexic eating behaviors can be conceptualized as a bidimensional construct encompassing an orthorexia nervosa dimension (ON) and a healthy orthorexia dimension (HO). Although variable-centered studies showed that ON and HO are distinguishable orthorexic eating behaviors, the evidence of whether they can co-occur or be distinct in subgroups of individuals is still limited. The present study aimed to address previous person-centered studies' limitations by examining profiles of ON and HO among a convenience sample of 251 French-speaking Canadian adults (85.7% women; Mage = 33.56). Profile membership was examined as function of participants characteristics such as age, gender, body mass index, frequency of physical activity and sports and vegetarianism. The relation between profile membership, intuitive eating and disordered eating attitudes and behaviors was also assessed. Latent profile analysis (LPA) were used to estimate profiles of ON and HO. Results from LPA did not provide support for the distinguishability of ON and HO. Indeed, they revealed the presence of two profiles showing co-occurring levels of ON and HO that only differed quantitatively: low (68.9% of the sample; low levels of ON and HO) or moderate orthorexic eating behaviors (31.1%; moderate levels of ON and HO). Participants who declared being vegetarian and being more frequently involved in physical activities and sports were more likely to belong to the moderate orthorexic eating behaviors' profile. Finally, participants from the moderate orthorexic eating behaviors' profile showed higher levels of disordered eating attitudes and behaviors, whereas those from the low orthorexic eating behaviors' profile showed higher levels of intuitive eating. Findings from the present study question the distinguishability of ON and HO dimensions. They also suggest that, similarly to ON, HO is also related to higher eating and lifestyle preoccupations.

Australian elite sport coaches' mental health literacy of eating disorders, orthorexia, and muscle dysmorphia in athletes: A qualitative study

Athletes have an increased risk of developing eating disorders (EDs) compared to non-athletes. Coaches are in a unique position to identify symptoms and promote timely support; however, research has not yet explored coaches' mental health literacy about DSM-5 EDs and related orthorexia and muscle dysmorphia conditions in elite athletes. Eighteen Australian elite sport coaches from aesthetic, weight-class, and endurance sports participated in individual semi-structured interviews to investigate their mental health literacy of EDs and related conditions. Four themes emerged from the data. Theme 1 (knowledge of EDs and related conditions) highlighted coaches' awareness of maladaptive perfectionism as a key risk factor, limited awareness of EDs without observable weight loss, and conceptualisation of EDs as a nutritional issue. Theme 2 (facilitators to managing EDs) highlighted the helpfulness of building trust with athletes, accessing support staff, emphasising body functionality, and lived experience. Theme 3 (barriers to managing EDs) highlighted coaches' challenges with communicating about body image, responding to denial, and funding constraints. Theme 4 (future ED education and training) highlighted coaches' desire for in-person, interactive training and to support junior-level coaches. These findings may assist in developing tailored educational resources to improve coaches' ability to identify and manage eating-related concerns in athletes.

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.

Measuring Pathological and Nonpathological Orthorexic Behavior: Validation of the Teruel Orthorexia Scale (TOS) among Polish Adults

Measuring orthorexia nervosa is challenging due to the use of various existing tools and problems with sample representativeness. Another challenge for the Polish population is the adaptation of existing research tools and the evaluation of their relevance and research reliability. Our research aimed to adapt the TOS to the Polish language and measure pathological and nonpathological orthorexic behavior among the Polish population. The adaptation of the PL-TOS has high psychometric value and allows us to assess healthy and nervous orthorexia levels. This scale can be used not only for further research but also for diagnostic purposes in the daily work of clinicians and psychologists. Our results obtained in the present study indicate a correlation between TOS and both the use of supplements and diet. Higher TOS, ORTO_R and KZZJ_Diet Restrictions scores were obtained for individuals using dietary supplements than for those not using dietary supplements. In the future, it is worth conducting research aimed at various risk groups of individuals with orthorexia to confirm the psychometric properties of this adaptation of the TOS.

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.

Orthorexia nervosa in dietitians and dietetics students-prevalence, risk factors, and interventions: a scoping review using a systematic approach

CONTEXT

Orthorexia nervosa (ON) is characterized by compulsive behaviors and increased concerns about healthful eating. Dietitians appear to be especially vulnerable to ON, and it is still debatable whether the disordered eating behaviors motivate individuals to enroll in nutrition programs, or whether these behaviors result from an exaggerated preoccupation with healthy eating triggered during their nutrition studies.

OBJECTIVE

The aim was to provide an overview of the present state of knowledge about the prevalence, risk factors, and interventions addressing ON among dietitians and dietetics students. More specifically, it was examined whether dietitians and dietetics students differ from students attending different education programs or other health professionals with regard to the severity and risk factors of ON, and whether the extent of ON changes during the progression in the nutrition education years of study.

DATA SOURCES

MEDLINE (Ovid), PubMed, EMBASE (Ovid), PsycInfo (EBSCO), CINAHL (EBSCO), Cochrane, ProQuest Central, CABI, ProQuest Dissertations, Google Scholar, ScienceDirect, and SpringerLink were searched on May 8, 2021, and updated on November 12, 2022.

DATA EXTRACTION

Records were screened for eligibility; study characteristics, methodology, and findings of included articles were extracted; and the methodological quality assessed using the AXIS tool. Each step was preceded by a calibration exercise and conducted independently and in duplicate by pairs of 2 reviewers. Any disagreements were resolved through discussions.

DATA ANALYSIS

A narrative synthesis was performed, whereby the characteristics, methodologies, and results of included studies were compared.

CONCLUSIONS

Results were inconclusive; yet, a general status of the relatively "high" prevalence of ON among dietitians and dietetics students was established, stressing the need for systematic research to understand and mitigate orthorexic tendencies in this group. It is still too early to answer questions pertaining to prevalence, risk factors, interventions, and differences between dietetics students and other majors when it comes to severity and progress of ON throughout the continuing years of study, or between dietitians and other professional groups.

SYSTEMATIC REVIEW REGISTRATION

Open Science Framework Identifier: DOI 10.17605/OSF.IO/BY5KF.

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.

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).

Assessing the presence and motivations of orthorexia nervosa among athletes and adults with eating disorders: a cross-sectional study

PURPOSE

Orthorexia nervosa involves restricting diet based on quality rather than quantity. Although orthorexia is well reported in many at-risk populations, limited data addresses its presence in individuals with eating disorder history (EDs) or athletes. We aimed to identify the presence and potential drivers of orthorexia in adults with EDs and endurance athletes, compared to control subjects.

METHODS

Participants ≥ 18y included: people with a diagnosed eating disorder (ED as per DSM-5); endurance athletes (training/competing ≥ 5 h/week); or control subjects. Participants (n = 197) completed an online survey assessing orthorexia (eating habits questionnaire, EHQ), eating motivations (TEMS-B) and compulsive exercise (CET).

RESULTS

ED had the highest orthorexia symptom severity (92.0 ± 3.02, n = 32), followed by athletes (76.2 ± 2.74, n = 54) and controls (71.0 ± 1.80, n = 111) (F (2) = 18.2, p < 0.001). A strong positive correlation existed between weight control motives and higher orthorexia symptom severity (r = 0.54, 95% CI [1.35, 2.36], p < 0.001), while a weak negative association existed between Hunger and Pleasure motives and higher orthorexia symptom severity (r = 0.23, 95% CI [- 2.24, - 0.34], p = 0.008; r = 0.26, 95% CI [- 2.11, - 0.47], p = 0.002, respectively). A moderate positive relationship was found between CET and orthorexia symptom severity (95% CI [1.52, 3.12], p < 0.001).

CONCLUSION

Adults with ED history and endurance athletes have greater orthorexia symptom severity compared to control. Clinicians working with at-risk populations should screen patients and be aware of red-flags of orthorexic traits, desire to control weight, and compulsive exercise behavior.

LEVEL OF EVIDENCE

III: Evidence obtained from cohort studies.

Exploration of orthorexia nervosa and diagnostic overlap with eating disorders, anorexia nervosa and obsessive-compulsive disorder

OBJECTIVE

Orthorexia nervosa (ON) is characterized as obsessional healthy eating that results in malnutrition and/or psychosocial impairment. Yet, ON shares theoretical overlap with eating disorders (EDs), especially anorexia nervosa (AN), as well as obsessive-compulsive disorder (OCD). This study aimed to further understand ON and its overlap with related disorders by assessing the ability of ON for detecting the presence/absence of threshold ED, AN, and OCD symptoms.

METHOD

An observational survey was completed by 197 participants recruited through eating disorder, dieting, and mental health support groups. Receiver operating characteristic (ROC) curve analyses determined the predictive ability of ON symptoms (assessed by Eating Habits Questionnaire [EHQ] orthorexia nervosa [OrNe] and healthy orthorexia [HeOr] subscales, and the Orthorexia Nervosa Inventory [ONI]) for detecting disordered eating symptoms (determined by Eating Disorder Examination Questionnaire [EDE-Q] global cut-scores), probable AN (determined by EDE-Q cut-scores and body mass index [BMI] <18.5), and OCD symptoms and obsessional thinking (assessed by the Revised Obsessive-Compulsive Inventory [OCI-R]).

RESULTS

Results showed both the ONI and EHQ OrNe measures are able to adequately predict ED symptoms and AN; however, both were poor to moderate at detecting OCD symptoms and obsessional thinking. Healthy orthorexia was poor to moderate at detecting outcomes.

DISCUSSION

These results suggest that ON, as it is currently operationalized, may be more closely related to EDs than OCD, and that ON may represent a subtype of AN. Results also support healthy orthorexia as a distinct construct to ON. While results are limited by the lack of definitive ON diagnostic criteria, findings suggest that treatments developed for EDs might be most suited to ON.

PUBLIC SIGNIFICANCE

ON has been proposed as a psychiatric disorder, and it shares theoretical overlap with several existing disorders. This study adopts a novel approach to assessing and exploring the overlap of ON with EDs, AN and OCD. Results suggest that ON shares more overlap with EDs and might best be understood as a subtype of EDs or AN.

Eating disorders occur at high rates in adolescents with epilepsy and are associated with psychiatric comorbidities and suicidality

OBJECTIVES

To assess the occurrence rate, characteristics, and impact of eating disorders (EDs) in adolescents with epilepsy.

METHODS

In this observational study, adolescents with epilepsy seen in a single center between 2013 and 2022 who had comorbid EDs were compared to two control groups of adolescents with only epilepsy and only EDs. Patients with intellectual disability or autism spectrum disorder were excluded. Data retrieved included demographic and anthropometric details and clinical variables relating to seizure types, EDs, and psychiatric disorders and behaviors.

RESULTS

A total of 376 subjects were included in the study: 84 adolescents with both epilepsy and eating disorders, 135 with only epilepsy, and 157 with only EDs. The rate of EDs in adolescents with epilepsy was 7.0% (95% confidence interval [CI] 5.6%-8.5%) overall, 11.3% (95% CI 8.8%-14.3%) in females, and 3.1% (95% CI 1.9%-4.8%) in males. The median (interquartile range [IQR]) time difference between the onset of epilepsy to an ED was 1.6 (.5-3.6) years. Among adolescents with epilepsy, those with an ED were more likely to be female (p = .001) and have a lower body mass index z-score (zBMI) percentile (p < .001). Epilepsy type, seizure frequency, or seizure duration were not specific for having or not having EDs. Among adolescents with EDs, those with epilepsy had a younger onset of their EDs (p < .001), included relatively more males (p = .007), and consisted of more cases of anorexia-nervosa-restrictive type (p < .001), and fewer cases of bulimia nervosa (p = .04) and binge eating disorder (p = .003). Adolescents with epilepsy and a comorbid ED were more likely to have psychiatric comorbidities such as depression, anxiety, and suicidality than adolescents with only epilepsy or EDs.

SIGNIFICANCE

EDs should be suspected and screened for in intellectually intact female and male adolescents with epilepsy, irrespective of their epilepsy type. If disturbed eating behaviors or EDs are identified, further evaluation should be directed at detecting other psychopathologies, including suicidality.

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.

Prevalence of Orthorexic Tendencies and Their Correlates Among Lebanese Patients with Cancer

Individuals with cancer face daily challenges regarding diet and healthy lifestyle behaviors that may lead them to better health. This quest for improved health can be exaggerated in unhealthy ways if it is not approached with moderation as occurs with a condition called orthorexia nervosa (ON). Our aim in this study was to determine the prevalence of ON tendencies and their behavioral correlates among Lebanese adults with cancer. This was a monocentric cross-sectional study, conducted between December 2021 and February 2022, involving 366 patients. We collected data via telephone and recorded answers online on a Google form. We used the Düsseldorf Orthorexia Scale (DOS) to assess orthorexic behaviors, and we checked for behavioral correlates of orthorexia through a linear regression model using the DOS score as the dependent variable. On the DOS scale, we found that 9% of these participants showed possible ON tendencies, whereas 22.2% had definite ON tendencies. Factors associated with having more ON tendencies were (a) receipt of hormonotherapy, (b) being female and (c) having breast cancer. Having prostate cancer was significantly associated with fewer ON tendencies. Our results should help improve the management of patients with cancer through programs to increase patient awareness and education.

The mediating role of sleep quality in the relationship between orthorexia nervosa and fear of COVID-19

The COVID-19 (SARS-CoV-2) pandemic has jeopardized humanity worldwide and has considerably altered the healthy lifestyle behaviors of societies. This study examined the possible mediating role of sleep quality in the relationship between orthorexia nervosa and fear of COVID-19 among Turkish adults. This study used an observational and descriptive design. It was carried out online with 1,130 participants across Turkey between April and August 2021. The data were collected using a questionnaire, the Fear of COVID-19 Scale (FC-19S), the Pittsburgh Sleep Quality Index (PSQI), and Orthorexia Nervosa-R (ON-R). The participants had an ON-R mean score of 3.08 ± 0.90 and a mean PSQI score of 8.03 ± 2.80. Likewise, their mean FC-19S score was 18.24 ± 6.55. There was a significant positive correlation between the FC-19S and the PSQI (r = 0.208; p = 0.000) as well as a significant negative correlation between the ON-R and the PSQI (r = - 0.145; p = 0.000). In addition, the results of the process model analysis supported our hypotheses that the PSQI was a predictor of ON-R and that its direct and indirect effects were moderated by FC19S and the PSQI. A one-unit increase in FC-19S scores causes an average 1% increase on the ON-R scale, while it generates an 8% increase on the PSQI. It was determined that the PSQI total score caused an average of 6% increase in the ON-R scale score. The findings of this study showed that sleep quality has a mediating role in the relationship between orthorexia nervosa and fear of COVID-19 experienced by Turkish adults during the pandemic. For this reason, governments need to take the necessary precautions concerning this subject when creating action plans for possible global crisis situations that may adversely affect public health in the future.

Exploring the relationship between dysfunctional metacognitive processes and orthorexia nervosa: the moderating role of emotion regulation strategies

BACKGROUND

Dysfunctional metacognitive processes and emotional dysregulation have been widely documented in the eating disorder literature. Despite numerous research and recent consensus suggesting the categorization of orthorexia nervosa as a form of eating disorder, no previous study has examined whether aberrant metacognitive processes also correlate with orthorexia nervosa tendencies. This paper investigates potential associations between symptoms of orthorexia nervosa and dysfunctional metacognitive processes while also exploring whether such relationships may be influenced by adaptive/maladaptive emotion regulation strategies.

METHODS

We conducted a cross-sectional study in all Lebanese governorates. In total, 423 Lebanese adults completed an online questionnaire including the Teruel Orthorexia Scale, the Emotion Regulation Questionnaire, the Difficulties in Emotion Regulation Scale - 16 Item Version, and the Metacognitions Questionnaire - Short Form.

RESULTS

Higher physical activity, expressive suppression, emotion regulation difficulties, positive metacognitive beliefs about worry, and need to control thoughts were significantly associated with higher orthorexia nervosa. Additionally, the emotion regulation strategies moderated the relationships between two dysfunctional metacognitive processes and orthorexia nervosa. Specifically, cognitive self-consciousness was negatively related to orthorexia nervosa only in individuals with low (versus higher) emotion suppression (maladaptive emotion regulation strategy). In contrast, negative beliefs about worry uncontrollability and danger positively predicted orthorexia nervosa only in individuals with lower (versus high) cognitive reappraisal (adaptive emotion regulation strategy). Lower socio-economic status and having a university level of education compared to secondary level were significantly associated with lower orthorexia nervosa.

CONCLUSION

Our study provides the first empirical evidence for the existence of significant associations between dysfunctional metacognitive processes and orthorexia nervosa. It also highlights that these pathways are considerably modulated by individuals' ability to regulate their emotions adaptively versus maladaptively. Our findings thus suggest that therapies aimed at improving thought monitoring and emotional regulation may be beneficial for individuals with symptoms of orthorexia nervosa.

Orthorexia and Orthorexia Nervosa: A Comprehensive Examination of Prevalence, Risk Factors, Diagnosis, and Treatment

Orthorexia nervosa is an emerging and controversial eating disorder characterized by an obsessive preoccupation with healthy eating and an extreme fixation on food purity. Despite growing public interest in orthorexia, its classification as a distinct eating disorder remains a subject of ongoing debate in the mental health community. This paper comprehensively reviews the current literature on orthorexia nervosa, exploring the prevalence rates, risk factors, diagnosis, and treatment options. The paper offers an overview of orthorexia and its historical context and explores the challenges and considerations in diagnosing orthorexia and orthorexia nervosa. Specifically, the distinction between "orthorexia" and "orthorexia nervosa" is a debated issue in eating disorder research due to a lack of clear diagnostic criteria, making it challenging to accurately differentiate between an obsession with healthy eating and a more severe form with potential distress and impairment. Given the absence of formal diagnostic criteria, developing valid and reliable assessment tools is crucial to accurately identify and treat individuals experiencing these disorders. The paper's final section covers the existing treatment approaches for orthorexia nervosa. Overall, the paper highlights the complex and multifaceted nature of orthorexia nervosa. This review contributes to the ongoing discourse surrounding orthorexia and provides valuable insights for clinicians, researchers, and stakeholders in the mental health and eating disorders fields.

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.

Cross-cultural adaptation and psychometric properties of the Italian version of the Orthorexia Nervosa Inventory (ONI)

BACKGROUND

Orthorexia Nervosa (ON) is an emerging clinical condition characterized by a pathological fixation with healthy eating. Recently, the Orthorexia Nervosa Inventory (ONI) has emerged as a promising tool for assessing orthorexic tendencies and behaviours, aiming to overcome the well-established limitations of existing measures for ON. The present study aimed to examine the psychometric properties of the Italian version of the ONI.

METHODS

A total of 879 participants (Mage = 33.22 years, SD = 9.19; 56.9% females) completed the ONI along with the Düsseldorf Orthorexia Scale (DOS), measures of disordered eating, obsessive-compulsive symptoms (OCD), and psychosocial impairment. To establish the factorial validity of the ONI, a competing measurement modeling approach was employed by comparing standard confirmatory factor analytic (CFA) with exploratory structural equation modeling (ESEM) solutions. Model-based omega coefficients were computed to examine the internal consistency of the scale. Factorial invariance tests across gender were conducted within a multi-group framework.

RESULTS

A three-factor first-order ESEM solution provided the best and most parsimonious representation of the data: χ2(207) = 558.641, p < .001, RMSEA = 0.044 (90% CI 0.040-0.048), CFI = 0.976, TLI = 0.968, SRMR = 0.036. The three latent dimensions, labelled behaviors, emotions, and impairments, showed excellent internal consistency (ω > 0.88). Furthermore, ONI scores were found to be positively correlated with DOS scores, disordered eating, OCD symptoms, and psychosocial impairment, supporting its convergent and criterion validity. Eventually, the ONI was factorially invariant across gender.

CONCLUSIONS

Overall, the present study provides evidence for the satisfactory psychometric properties of the ONI in the Italian context, endorsing its use in both clinical and research settings.

At the Same Table: A Delphi Consensus-Based Model of Health-Promoting Eating Behaviors

Eating behaviors and patterns are one of the key behavioral indicators of health, and as such these behaviors are a focus of interest across different areas of scholarship. Yet, to date, work in this area is impeded by the lack of a collective theoretical framework to conceptualize, assess, and intervene upon eating behaviors. The aim of this study was therefore to establish a consensus-based framework for health-promoting eating behaviors using a Delphi methodology. An initial systematic search identified constructs that yielded 150 items grouped into three topic areas: (1) the content, types of food and nutrition provided; (2) eating behaviors; and (3) thoughts and feelings related to eating and foods. Over the course of three iterative rounds of rating by a panel of n = 37 experts, a consensus was reached that included eight of the original items that represented the three topic areas. The findings from this study result in a novel consensus-based framework for health-promoting eating behaviors that can form the basis for collaborative work towards the integration of physical and mental health promotion.

Vegan and vegetarian males and females have higher orthorexic traits than omnivores, and are motivated in their food choice by factors including ethics and weight control

BACKGROUND

Evidence associating plant-based diets with the proposed 'obsessively healthy eating' eating disorder, orthorexia nervosa, has mostly focused on females. Diet motivations have seldom been assessed.

AIM

To compare orthorexic tendencies between vegans/vegetarians and omnivores of both sexes, and reasons behind food choice with an English-validated Food Choice Questionnaire.

METHODS

A cross-sectional survey of 444 males and females were recruited via social media, email, and Amazon MTurk; to investigate eating patterns, orthorexic tendencies using the ORTO-15 questionnaire, and eating motivations using the Food Choice Questionnaire.

RESULTS

Over half of the participants were male (53.4%), younger adults (mean ± SD 37.2 ± 11.2 years), and mostly from the United States (89%). Vegan and vegetarian eating habits were reported by 15.8% of people. Vegans/vegetarians had significantly higher orthorexic tendencies than omnivores, and chose food significantly more often for Weight Control, Ethical Concern, Natural Content, and Mood reasons. People with greater orthorexic tendencies (ORTO-15 score<35) chose food significantly more often for Weight Control and Ethical Concern reasons than those with less orthorexic tendencies (ORTO-15 score 35+).

CONCLUSION

This study's results are in line with the majority of the evidence that shows an association between vegan/vegetarian diets and orthorexic tendencies, but strengthens the evidence base by including more male participants. Additionally, this is the first study to use an English-validated motivation-based questionnaire that explored diet motivators in vegans/vegetarians compared to omnivories, and in those with orthorexic tendencies vs. those without orthorexic tendencies.

Turkish Version of the New Instrument for Orthorexia Nervosa-Test of Orthorexia Nervosa (TON-17): A Validity and Reliability Study

This study aimed to adapt the Test of Orthorexia Nervosa- (TON-17) into Turkish and verify its validity and reliability. The study included 539 adults with a mean age of 30.2 ± 12.26 years. A reliability analysis was performed, along with a confirmatory factor analysis to test its construct validity. The time-invariance of the scale was examined by test-retest analysis, and its convergent validity was evaluated by a correlation analysis conducted to test the relationships between the scale and Eating Attitudes Test-26 and Obsessive Beliefs Questionnaire-9. Analyses were conducted using SPSS Version 28 and the AMOS-24 software. The Cronbach's α internal consistency coefficient of the total scale was found to be 0.82, suggesting a strong internal consistency. The Cronbach's α values of its factors were 0.68 for the "control of food quality", 0.64 for the "fixation on health and a healthy diet", and 0.73 for the "disorder symptoms". In addition, the test-retest reliability was found to be 0.87 for the total scale, suggesting excellent reliability. Most of the fit indices (CMIN/df, RMSEA, AGFI, NFI, and TLI) of the scale were acceptable, and the GFI indicated a good model fit. This study shows that the Turkish version of TON-17, which is a new tool with a three-factor structure to evaluate orthorexia, is a valid and reliable scale.

Too healthy for their own good: orthorexia nervosa and compulsive exercise in the community

BACKGROUND

The similarities and differences between orthorexia nervosa symptoms (ONs) and the symptoms and correlates of eating disorders listed in the DSM-5 need to be elucidated. ONs were examined in a volunteer community sample in conjunction with compulsive exercise, disordered eating, as well as emotional and behavioral correlates of eating disorders.

METHODS

Participants were 561 adult volunteers (93 men, 17.09%) aged 19-72 (M = 32.7 ± 11), recruited via social media networks. Participants self-reported on the following measures online: Düsseldorf Orthorexia Scale, Compulsive Exercise Test, Retrospective Child Feeding Questionnaire, Experiences in Close Relationships, Difficulties in Emotional Regulation Scale, Toronto Alexithymia Scale, and Eating Disorder Examination Questionnaire 13. Data were downloaded and analyzed in SPSS26 and Amos26.

RESULTS

A theoretical model of the connections between the study variables was tested via SEM and confirmed. The profiles of participants with high, average and low levels of ONs were compared. Participants with the highest levels also scored highest for compulsive exercise, insecure attachment, alexithymia, emotion regulation difficulties, weight and shape concerns, body dissatisfaction, restriction, bingeing, purging and parental feeding practices of concern about child's weight and restricting and monitoring the child's intake of calorie-rich foods.

DISCUSSION

High levels of ONs are related to disordered eating attitudes and behaviors, as well as to emotional and behavioral correlates of eating disorders. It is unclear to what extent these ONs are distinguishable from symptoms of other eating disorders listed in the DSM-5. Longitudinal studies may help to elucidate distinct trajectories and risk factors for ON.

LEVEL OF EVIDENCE

Level III, case-control analytic study.

The complex interplay between psychosocial and biological factors in pregorexia nervosa - a rapid review

The importance of detecting eating disorders (EDs) during pregnancy cannot be overemphasized, because of the major negative effects this pathology has on both maternal and fetal health. Based on a rapid review including primary and secondary reports, PN may still be considered an elusive diagnosis entity, that partially overlaps with other EDs, either well-defined, like anorexia nervosa, or still in search of their own diagnosis criteria, like orthorexia nervosa. Neurochemical and hormonal factors, psychological and social mechanisms, along with lifestyle changes create a very complex framework for clinicians interested in defining the typical features of pregorexia nervosa (PN). The personal history of EDs is considered one of the most important risk factors for PN. The core diagnostic criteria for this entity are, so far, lack of gaining weight during pregnancy, an excessive focus on counting calories and/or intense physical exercising with a secondary decrease of interest in the fetus's health, lack of acceptance of the change in body shape during pregnancy, and pathological attention for own body image. Regarding the treatment of PN, nutritional and psychosocial interventions are recommended but no specific therapeutic strategies for this disorder have been detected in the literature. Psychotherapy is considered the main intervention for pregnant women with associated EDs and mood disorders, as the pharmacological agents could have teratogenic effects or insufficient data to support their safety in this population. In conclusion, taking into consideration the methodological limitations of a rapid review, data supporting the existence of PN were found, mainly regarding tentative diagnostic criteria, risk factors, and pathophysiological aspects. These data, corroborated with the importance of preserving optimal mental health in a vulnerable population, e.g., pregnant women, justify the need for further research focused on finding specific diagnostic criteria and targeted therapeutic approaches.

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.

Healthy orthorexia vs. 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.

Mind the Gap: Tools for the Diagnosis and Assessment of Orthorexia Nervosa Based on the Recent Consensus Definition. Reply to Meule, A. Comment on "Sifakaki et al. Orthorexia Nervosa Practices in Rheumatoid Arthritis: The DORA Study. Nutrients 2023, 15, 713"

In a recent manuscript, our team published the results of an original pilot cross-sectional study assessing orthorexia nervosa (ON) tendencies among patients with rheumatoid arthritis (RA) [...].

Anorexia Nervosa in Juvenile Systemic Lupus Erythematosus (SLE): A Causality Dilemma

Juvenile-onset systemic lupus erythematosus (jSLE) is an autoimmune disorder with multifaceted clinical findings in different organ systems. Neuropsychiatric manifestations affect more than half of SLE patients, and there is increasing evidence that anorexia nervosa (AN), a feeding and eating disorder (FED) characterized by significantly reduced energy intake, is among them. Herein, a review of the literature on the potential association between jSLE and AN was performed. Reported clinical cases were identified, and putative pathophysiological mechanisms were sought that could potentially explain the observed relationship between these two pathological entities. Four reports of isolated cases and a case series including seven patients were identified. In this limited patient pool, the diagnosis of AN preceded that of SLE in the majority of cases, whereas in all cases both entities were diagnosed within a time span of two years. Many explanations for the observed relationships have been proposed. AN has been associated with the stress of chronic disease diagnosis; on the other hand, the chronic inflammation associated with AN may contribute to the development/appearance of SLE. Adverse childhood experiences, concentrations of leptin, shared autoantibodies, and genetic traits appear to be important factors in this well-established interplay. In essence, it seems important to increase clinician awareness of the concomitant development of AN and SLE and invite further research on the subject.

U.S. 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.

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.

"Your struggles are valid, you are worthy of help and you deserve to recover": narratives of recovery from orthorexia nervosa

PURPOSE

Limited research has examined recovery processes and conceptualisations of recovery within orthorexia nervosa (ON). This study harnessed Instagram data to examine how people who self-identify with ON use the hashtag #OrthorexiaRecovery and how recovery is represented within this online space.

METHODS

500 textual posts containing #OrthorexiaRecovery were extracted from Instagram. Co-occurring hashtags were analysed descriptively to determine whether this online space is specific to ON, and textual data were analysed using reflexive thematic analysis.

RESULTS

The hashtag analysis indicated that #OrthorexiaRecovery is being used within a wider context of eating disorder recovery and awareness, but also provides deep insights into experiences of recovery from ON. The thematic analysis generated five themes: the invisibility of orthorexia; a turbulent and continuous process; finding food freedom; from compulsive exercise to intuitive movement; a community of support. Our findings suggest that people with self-reported ON experience recovery as a continuous process and the current invisibility of ON within diagnostic criteria and wider society impedes recovery. While working towards recovery, users aimed to be free from diet culture, become more attuned to their bodies, and develop more adaptive relationships with food and fitness. Users noted a general lack of support for people with ON and so used this online space to create a supportive community, though some content was potentially triggering.

CONCLUSION

Our findings highlight the importance of increased recognition of ON and the potential value of targeting societal norms and harnessing social identity resources within therapeutic interventions for ON.