The role of minority stress in disordered eating: a systematic review of the literature

Meneguzzo P., Zuccaretti D., Tenconi E., Favaro A.

In the context of body image and mental health, transgender individuals face distinctive challenges stemming from the complexities of their gender identity journey, societal expectations, and body norms. However, the existing line of research on this topic remains limited. This study explores the complex relationship in transgender individuals between body objectification, body weight dissatisfaction, and eating concerns. A sample of 154 individuals (77 transgenders paired with 77 cisgenders) was recruited via LGBTQ+ groups’ mailing lists. Participants completed various questionnaires assessing body image, eating psychopathology, depression, and body objectification. Propensity score matching was performed with different variables: age, current BMI, years of education, current self-identified gender, and sexual orientation. The results revealed that transgender individuals experienced higher levels of body objectification, body weight dissatisfaction, and eating concerns compared to their cisgender counterparts. Additionally, age emerged as a protective factor, as older transgender individuals demonstrated improved body acceptance and self-esteem. Logistic regression analyzes indicated that bulimic behaviors, depressive symptoms, and appearance control beliefs were specific factors significantly associated with being transgender. Our findings highlight the unique challenges faced by transgender individuals in navigating their gender identity and body image, underscoring the importance of targeted interventions and support systems.

Hong D., Tang C., Barnhart W.R., Cui S., He J.

As an integrated framework informed by the Minority Stress Model and Objectification Theory, the Pantheoretical Model of Dehumanization was proposed to better understand mental health outcomes in transgender individuals. With a sample of 200 Chinese transgender adults, the present study tested the associations and potential mechanisms between internalized cisgenderism, self-objectification, body shame, and mental health correlates in the framework of the Pantheoretical Model of Dehumanization. Correlation and regression analyses were used. Results showed that internalized cisgenderism was positively related to body shame, psychological distress, disordered eating, non-suicidal self-injury (NSSI), suicidal ideation, and suicide attempts. Body shame showed significant indirect effects in the association between internalized cisgenderism and suicide attempts, and in the associations between internalized cisgenderism and psychological distress, disordered eating, and NSSI. In addition, body shame had significant indirect effects in the associations between body surveillance and disordered eating, NSSI, and suicide attempts, and in the association between body surveillance and psychological distress. As the first study testing the associations of core variables in the Pantheoretical Model of Dehumanization in a Chinese transgender sample, the findings largely supported the model in describing meaningful variance in Chinese transgender adults’ psychological distress, disordered eating, and self-injurious thoughts and behaviors.

Frost D.M., Meyer I.H.

The minority stress model has been influential in guiding research on sexual and gender minority health and well-being in psychology and related social and health sciences. Minority stress has theoretical roots in psychology, sociology, public health, and social welfare. Meyer provided the first integrative articulation of minority stress in 2003 as an explanatory theory aimed at understanding the social, psychological, and structural factors accounting for mental health inequalities facing sexual minority populations. This article reviews developments in minority stress theory over the past two decades, focusing on critiques, applications, and reflections on its continued relevance in the context of rapidly changing social and policy contexts.

Simone M., Askew A.J., Beccia A.L., Cusack C.E., Pisetsky E.M.

Schmidt M., Taube C.O., Heinrich T., Vocks S., Hartmann A.S.

Objective This study contributes to the quantitatively large, yet narrow in scope research on body image in gay men by assessing whether gay and heterosexual men systematically differ on various dimensions of body image disturbance and associated pathology, i.e., eating disorder and body dysmorphic disorder symptoms. Moreover, we examined the influence of general everyday discrimination experiences and involvement with the gay community on body image. Method N = 216 men (n = 112 gay men, n = 104 heterosexual men) participated in an online survey measuring the discrepancy between self-rated current and ideal body fat/ muscularity; drive for leanness, muscularity, and thinness; body satisfaction; body-related avoidance and checking; appearance fixing; overall body image disturbance; eating disorder and body dysmorphic disorder pathology; general everyday discrimination experiences; and involvement with the gay community. Results Gay men showed a greater discrepancy between self-rated current and ideal body fat; higher drive for thinness, body-related avoidance, appearance fixing, overall body image disturbance, eating disorder and body dysmorphic disorder pathology; and lower body appreciation than heterosexual men (all p ≤ .05). Contrary to expectation, everyday discrimination experiences were more strongly associated with body image disturbance and eating disorder/ body dysmorphic disorder pathology in heterosexual men than in gay men (all p ≤ .05). Gay community involvement was not associated with any body image disturbance-, ED-, or BDD aspect in gay men (all p ≥ .20). Discussion The results suggest greater body image disturbance in gay men than in heterosexual men regarding cognitions, emotions, behaviors, and perception as well as higher eating disorder and body dysmorphic disorder pathology. The results also suggest the dilemma of a thin, yet muscular body ideal in gay men. Surprisingly, discrimination experiences and involvement with the gay community did not explain differences in body image disturbance. Gay men may have become resilient to discrimination over time, and body ideals might differ across gay sub-communities.

Nowicki G.P., Marchwinski B.R., O’Flynn J.L., Griffths S., Rodgers R.F.

Research suggests that the risk of body image concerns among sexual minority men is high. Recent work has increasingly examined body image in relation to psychological, interpersonal, and behavioral constructs, but these findings have yet to be consolidated and critically examined to identify potential risk and protective factors. The present study sought to systematically review and synthesize published findings on body image among sexual minority men. A total of 136 articles published between January 2011 and March 2022 were included. Sexual minority men were generally reported to have more negative body image compared to heterosexual men, yet findings varied across body image constructs. In correlational work, body image was often examined in relation to disordered eating, mental health, internalization of appearance ideals, objectification, sexual behavior and relationships, gay community identification and discrimination, and health concerns (e.g., HIV, AIDS). Robust relationships emerged among body image and stigma variables, including internalized homophobia and harassment related to LGBTQ+ presentation and intersecting minority identities. Sociocultural, objectification, and minority stress theories were employed to interpret findings and to delineate future directions grounded in intersectional approaches. Additional work focused on the role of stigma and discrimination in the development of these concerns across the lifespan is needed.

Barnhart W.R., Sun H., Lin Z., Lu C., Han X., He J.

Theories of eating pathology explain body image and disordered eating in diverse populations, including sexual minority (SM) individuals. Yet, previous efforts to extend theories of eating pathology to SM individuals have mostly focused on Western populations. The present study integrated the tripartite influence, minority stress, and social comparison models to explain variance in body image and disordered eating in Chinese SM men and women. Chinese self-identified SM adults (N = 1051; n = 519 men, n = 532 women) completed an online, cross-sectional study that assessed sociocultural influences (e.g., tripartite influence), minority stress, social comparisons, drive for muscularity, and disordered eating. Two integrated models were tested for men and women using structural equation modeling. Across both populations, sociocultural influences exerted the largest direct positive effects on body image and disordered eating. In men, only downward body image comparisons were uniquely related to outcomes. In women, higher upward body image comparisons were uniquely associated with higher drive for muscularity and higher downward body image comparisons were uniquely associated with higher thinness-oriented disordered eating. Minority stressors (e.g., sexual orientation concealment, internalized homophobia) were uniquely related to outcomes in men, not women. Findings extend existing theories of body image and disordered eating to Chinese SM populations.

Panero M., Longo P., De Bacco C., Abbate-Daga G., Martini M.

Background: the role of self-conscious emotions (SCE) such as shame and guilt in eating disorders (ED) has been systematically studied only in recent years, but it is still debated. This study aims to investigate the role of SCE in anorexia nervosa (AN), evaluating the role of self-consciousness. Methods: fifty-five individuals with AN and seventy-four healthy controls (HC) were enrolled and completed a battery of tests evaluating the proneness to feel shame and guilt, as well as comparing self-consciousness, eating, and general psychopathology. Results: individuals with AN showed a higher proneness to shame. Shame was correlated with body dissatisfaction and drive for thinness, which are core symptoms in AN, after controlling for scores of depression and anxiety. Proneness to guilt seemed to be less correlated with eating and body symptomatology, but it appeared to have a negative correlation with binge-purging symptoms. Furthermore, proneness to shame was independent of guilt or self-consciousness and the two groups did not differ regarding public and private self-consciousness. Conclusions: shame is an important and independent factor in AN. Future research may offer progress in the development of shame-focused therapies.

Urban B., Knutson D., Klooster D., Soper J.

Eating pathology (EP) is reported at alarmingly high rates among transgender and nonbinary (TNB) people. The present study investigates key associations between experiences that are common in TNB populations and EP. TNB individuals located within the United States (N = 212) who self-identified as currently experiencing disordered eating or an eating disorder were recruited from social media outlets and completed an online survey that included measures of EP, discrimination-based trauma symptoms, internalized transphobia, and gender dysphoria. The average age of participants was just over 27 years old (SD = 6.22) and the majority of participants (68.9%) were nonbinary. Data were analyzed using IBM SPSS version 28 and PROCESS 4.0. Discrimination trauma [β = .27, t(211) = 3.90, p < .001] and internalized transphobia [β = .21, t(211) = 3.03, p = .003] were significant predictors of EP in a multiple regression model. Additionally, internalized transphobia partially mediated the association between discrimination trauma and EP. Findings reinforce the need for trauma-informed and multiculturally competent provision of services for TNB populations presenting with eating concerns. Results also highlight the complex role that previously unexplored variables play in the etiology of EP for TNB populations. Implications and clinical recommendations are discussed.

O'Flynn J.L., Nowicki G.P., Laveway K., Gordon A.R., Rodgers R.F.

Sexual minority (SM) groups (e.g., those who identify as lesbian, gay, bisexual, questioning, queer, asexual, or those who feel their sexual orientation identity cannot be captured with existing terminology [LGBQA+] and those who report same-sex or same-gender attraction and/or behavior) are at elevated risk for eating disorder (ED) symptoms and behaviors. However, the ways in which this risk varies across SM is less clear, and findings are not fully convergent. Evolution in the definition and assessment of SM status may contribute to this divergence. The aim of this study was to systematically review how sexual orientation and SM status have been assessed in the ED literature and how this may relate to patterns of associations between SM status and ED symptoms.A systematic review of the literature focused on ED symptoms and behaviors and SM groups was conducted, yielding 182 studies.Five categories were created reflecting SM status assessment: identity only (n = 105), attraction only (n = 8), behavior only (n = 4), combinations of identity, behavior, or attraction (n = 58), and articles with unclear or insufficient information about SM status assessment (n = 7). SM status operationalizations varied across studies, with more inclusive assessments in more recent work. Findings revealed persistent conflicting patterns of disordered eating symptomatology for some SM groups. In addition, decisions to selectively combine SM participants in some studies, most often to increase power, decreased the specificity of their results in relation to differential risk and protective factors within specific LGBQA+ groups.Findings highlight the importance of inclusive assessments of sexual orientation in the ED literature and research focused on underrepresented groups with intersecting identities. Identifying modifiable targets for intervention is a critical next step.Sexual minority (SM) groups have been identified as presenting elevated risk for eating disorder symptoms and behaviors. Our findings suggest that the level of risk is variable across SM groups and points to the need for multi-dimensional assessments of SM status, and increased focus on the function of disordered eating behaviors and different profiles that might emerge related to efforts to modify physical appearance or to regulate emotion.Los grupos de minorías sexuales (SM) tienen un riesgo elevado de síntomas y comportamientos de trastornos de la conducta alimentaria. Sin embargo, las formas en que este riesgo varía entre SM son menos claras. La evolución en la definición y evaluación del estatus de SM puede contribuir a esta divergencia. El objetivo de este estudio fue revisar sistemáticamente cómo se han evaluado la orientación sexual y el estado de SM en la literatura sobre trastornos de la conducta alimentaria y cómo esto puede relacionarse con los patrones de asociaciones entre el estado de SM y los síntomas del trastorno alimentario. MÉTODOS: Se realizó una revisión sistemática de la literatura centrada en los síntomas y comportamientos del trastorno de la conducta alimentaria y los grupos de SM, que arrojó 182 estudios.Se crearon cinco categorías que reflejan la evaluación del estado de SM: solo identidad (n = 105), solo atracción (n = 8), solo comportamiento (n = 4), combinaciones de identidad, comportamiento o atracción (n = 58) y artículos con información poco clara o insuficiente sobre la evaluación del estado de SM (n = 7). Las operacionalizaciones del estado de SM variaron entre los estudios, con evaluaciones combinadas más inclusivas en el trabajo más reciente. Los hallazgos revelaron patrones persistentes y conflictivos de sintomatología alimentaria disfuncional para algunos grupos de SM. Además, las decisiones de combinar selectivamente a los participantes de SM en algunos estudios, con mayor frecuencia para aumentar el poder, disminuyeron la especificidad de sus resultados en relación con el riesgo diferencial y los factores de protección dentro de grupos LGBQA+ específicos. DISCUSIÓN: Los hallazgos resaltan la importancia de las evaluaciones inclusivas de la orientación sexual en la literatura sobre trastornos alimentarios y la investigación centrada en grupos subrepresentados con identidades que se cruzan. Identificar objetivos modificables para la intervención como recursos es un siguiente paso crítico.

Barker T.H., Stone J.C., Sears K., Klugar M., Leonardi-Bee J., Tufanaru C., Aromataris E., Munn Z.

JBI offer a suite of critical appraisal instruments that are freely available to systematic reviewers and researchers investigating the methodological limitations of primary research studies. The JBI instruments are designed to be study-specific and are presented as questions in a checklist. The JBI instruments have existed in a checklist-style format for approximately 20 years; however, as the field of research synthesis expands, many of the tools offered by JBI have become outdated. The JBI critical appraisal tools for quantitative studies (eg, randomized controlled trials, quasi-experimental studies) must be updated to reflect the current methodologies in this field. Cognizant of this and the recent developments in risk-of-bias science, the JBI Effectiveness Methods Group was tasked with updating the current quantitative critical appraisal instruments. This paper details the methods and rationale that the JBI Effectiveness Methods Group followed when updating the JBI critical appraisal instruments for quantitative study designs. We detail the key changes made to the tools and highlight how these changes reflect current methodological developments in this field.

Trombetta T., Rollè L.

Intimate partner violence (IPV) among sexual minority people has been underestimated since few decades ago despite its spreading. The current systematic review aims to review and systematize studies on factors associated with IPV perpetration within this population. Data search was conducted on EBSCO and PubMed considering articles published until July 2022, and 78 papers were included. Although methodological limitations can affect the results found, the data demonstrated an association between IPV perpetration and psychological, relational, family of origin-related and sexual minority-specific factors, substance use, and sexual behaviors. The findings emerged highlight the importance of a multidimensional approach to tackle IPV perpetration among sexual minority people and limit relapses, while increasing individual and relational wellbeing. The empirical evidence emerged can contribute to the development of policies and services tailored for sexual minority people victims of IPV, to date still scarce and often ineffective.

Muratore L.A., Flentje A., Schuster D., Capriotti M.R.

Transgender and gender-expansive (TGE) people, including transgender and nonbinary individuals, experience elevated rates of body dissatisfaction and disordered eating compared to cisgender individuals, but little is known about why. To address this research gap, we compared the ability of TGE-specific factors as proposed in the gender minority stress and resilience (GMSR) model, general psychological factors contained in the tripartite influence (TI) model, and an integration of these frameworks to explain body dissatisfaction and disordered eating among TGE individuals. Regression analyses were conducted to test the models' abilities to explain experiences reported in a survey of 93 U.S. TGE adults, including 43 transgender women respondents (46.2%) and 31 transgender men respondents (33.3%). Participants were diverse with regard to age (M = 34.19, SD = 12.02) and ethnoracial background (e.g., 29.0% Hispanic/Latinx, 17.2% Black/African American, 6.5% American Indian/Alaska Native; 5.4% multiracial). Results demonstrated both models' abilities to explain body dissatisfaction and disordered eating independently, except for the relationship between body dissatisfaction and the thinness-oriented TI model. An integration of the models better explained body dissatisfaction and disordered eating compared to either model alone. Notably, some findings did not align with the two frameworks, suggesting existing models may not adequately describe pathways through which disordered eating emerges in TGE populations. Specifically, body dissatisfaction showed no significant relationship with disordered eating and was not well explained by the TI model, and higher gender identity pride was related to greater disordered eating symptoms. Implications for clinical care and future research are discussed.

Richburg A., Stewart A.J.

Body image is consequential for overall well-being and has a complex relation to gender. Sexual and gender minority (SGM) individuals develop body image amid intersecting systems of oppression, such as sexism, cisnormativity, heteronormativity, and gender binary pressures. This study used an intersectionality framework to examine how various aspects of gender identification (cis/trans, binary/nonbinary, woman/man identification) related to body image differences among SGM individuals. We also assessed whether identification with conventionally masculine and feminine personality traits predicted body image. We used one-way and two-way ANOVAs and linear regressions to analyze two indicators of body image (body appreciation and drive for muscularity) in a sample of 643 SGM individuals (148 sexual minority (SM) cis women, 171 trans women, 121 SM cis men, 43 trans men, 160 nonbinary individuals). Results implicated cisnormativity as an influential and hierarchical force for body image, although woman/man and binary/nonbinary identification also played roles in group differences. With a few exceptions, masculine but not feminine trait identification significantly predicted body appreciation and drive for muscularity, indicating a complicated association with overall body image. These findings underscore the value of an intersectional lens for analyzing how broad social forces may manifest in individual-level body image for SGM individuals.

Burke N.L., Hazzard V.M., Schaefer L.M., Simone M., O'Flynn J.L., Rodgers R.F.

Abstract Background Longstanding biases have fostered the erroneous notion that only those of higher socioeconomic status (SES) experience eating disorders (EDs); however, EDs present across all SES strata. Considering the dearth of ED research among those of lower SES, this study examined (1) the overall association between SES and ED prevalence, and (2) ED prevalence in the context of four relevant social identities (i.e. SES, gender identity, sexual orientation, and race/ethnicity) from an intersectional perspective, as unique combinations of multiple social identities may differentially influence risk. Methods A sample of 120 891 undergraduate/graduate students from the Healthy Minds Study self-reported family SES with a single-item question, gender identity, sexual orientation, and race/ethnicity, and were screened for ED risk. Results Participants of lower SES had 1.27 (95% CI 1.25–1.30) times greater prevalence of a positive ED screen than those of higher SES. Substantial heterogeneity was observed across the four social identities beyond the association with SES. For example, positive ED screens were particularly common among lower SES, Latinx, sexual minority cisgender men and women, with 52% of bisexual men and 52% of lesbian women of Latinx ethnicity and lower SES screening positive. Conclusions Although positive ED screens were more common among undergraduate/graduate students of lower SES, the particularly high ED risk reported by certain groups of lower SES with multiple minority identities reinforces the importance of investigating multi-layered constructs of identity when identifying groups at disproportionate risk.

Grunewald W., Sonnenblick R., Kinkel-Ram S.S., Stanley T.B., Clancy O.M., Smith A.R.

Weight stigma, and more specifically, anti-fat attitudes, is associated with disordered eating. Furthermore, these anti-fat attitudes influence various appearance ideals. Muscle dysmorphia (MD) is characterized by preoccupation with the muscular ideal and is a potential form of disordered eating commonly experienced by men. Despite theory suggesting that anti-fat attitudes may contribute to MD, research has yet to examine associations between anti-fat attitudes and MD symptoms. Therefore, the current study investigated longitudinal relationships between anti-fat attitudes and MD symptoms. Participants were 269 U.S. men recruited from Prolific who completed three self-report surveys each separated by one month. Primary analyses examined longitudinal relationships between specific anti-fat attitudes and MD symptoms using an adapted three-wave cross-lagged panel model. Results demonstrated that believing that fat people do not have willpower was longitudinally associated with desires to increase muscle size at multiple time points. Furthermore, MD-specific functional impairment predicted fears of becoming fat longitudinally. Practically, men may desire to increase their muscularity to demonstrate their own willpower and distance themselves from anti-fat stereotypes. Thus, clinicians may consider targeting weight stigmatizing attitudes to reduce MD symptom severity among their male clients.

Nagata J.M., Diep T., Helmer C.K., Domingue S.K., Al-Shoaibi A.A., Raney J.H., Ganson K.T., Testa A., He J., Brindis C.D., Baker F.C.

Abstract Background Sexual orientation discrimination increases the risks of negative health outcomes for sexual minorities. Previous studies have found increased rates of eating disorder symptoms in sexual minority individuals, which is attributable to minority stress and discrimination that they experience. Emerging research suggests relationships between sexual orientation discrimination and eating disorder symptoms. However, there is a lack of studies focusing on early adolescents. The objective of this study was to determine prospective associations between discrimination based on sexual orientation and eating disorder symptoms in a national sample of 10–13-year-old early adolescents in the U.S. Methods We examined prospective data from Year 2 (2018–2020) and Year 3 (2019–2021) of the Adolescent Brain Cognitive Development (ABCD) Study (N = 8976). Multiple logistic regression analyses were used to estimate associations between self-reported experiences of sexual orientation discrimination in Year 2 and eating disorder symptoms in Year 3, adjusting for potential confounders, including eating disorder symptoms in Year 2. Sexual orientation discrimination was assessed based on the Perceived Discrimination Scale, which measures adolescents’ perception of being treated unfairly based on various sociodemographic characteristics. Eating disorder symptoms were based on the parent-reported Kiddie Schedule for Affective Disorders and Schizophrenia (KSADS-5). Results In this demographically diverse sample of early adolescents (N = 8976, age range 10–13 years at Year 2), 5.5% of adolescents reported sexual orientation discrimination in Year 2. The prevalence of parent-reported eating disorder symptoms in Year 3 varied from 1.0 to 8.3%. In the adjusted models, sexual orientation discrimination was prospectively associated with worry about weight gain (adjusted odds ratio [aOR] 2.33, 95% confidence interval [CI] 1.15–4.69) and self-worth tied to weight (aOR 1.60, 95% CI 1.01–2.53) one year later. Conclusions Early adolescents who have experienced sexual orientation discrimination have higher odds of experiencing eating disorder symptoms, particularly worrying about weight gain and tying self-worth to weight. Clinicians may consider screening for sexual orientation discrimination and providing affirmative, trauma-informed care when evaluating and treating even younger sexual minority adolescents for eating disorder symptoms.

Elwyn R., Williams M., Smith E., Smith S.

Research into the risk of anorexia nervosa (AN) has examined twin pairs to further the understanding of the contributions of genetics, trait inheritance, and environmental factors to eating disorder (ED) development. Investigations of twin experiences of EDs have been biologically-based and have not considered the qualitative, phenomenological aspects of twin experiences. A gap in the literature exists regarding understanding of discordant twins with EDs. This research was developed in response, with the aim to deepen understanding of AN in discordant twins and to create novel ideas for further research and testing. The case studies presented in this article provide lived experience insights of two identical discordant twin pairs: one twin pair discordant for longstanding AN and one twin pair discordant for ‘atypical’ AN (the twin with AN has recovered). The perspectives and experiences of each co-twin (one with AN and one without) explore a number of factors that may have contributed to twin discordance in these cases, and how each twin has responded to the impact of AN in their lives. Through use of first-person accounts in case study presentation, this article centres social justice values of lived experience leadership and involvement in research. This article aims to extend current knowledge and understanding of EDs in discordant twins, particularly regarding risk for ED development, ED duration, diagnosis and treatment, and recovery processes.