For many autistic people I’ve met while working in an eating disorder charity, food restriction is less about appearance and more about survival. One individual described eating as “a battle with every sense”, illustrating how restriction can become a way to cope with an overwhelming world. Yet these experiences rarely appear in traditional models of Restrictive Eating Disorders (REDs), particularly Anorexia Nervosa (AN), which is often framed through weight and shape concerns (Kinnaird et al., 2019).
This gap is striking given that around 30% of people with AN screen positive for autism, compared with about 1% in the general population (İnal-Kaleli et al., 2024). Autism involves differences in communication, sensory processing and thinking styles (APA, 2013), all of which influence how food is perceived and why restrictive eating may develop (Chen et al., 2022). Autistic individuals with REDs also experience longer hospital admissions, more intensive treatment and poorer outcomes post-treatment compared to neurotypical groups (Alford et al., 2025; Tchanturia et al., 2020), highlighting a clear mismatch between their needs and current service provisions.
Loomes et al. (2025) provide the first systematic review synthesising emerging qualitative research on autistic experiences of REDs. Their paper reveals shared experiences, unique challenges, and key adaptations to make treatment more responsive for autistic individuals.
Autism-related experiences of restrictive eating are poorly understood and consistently overlooked in current treatment models.
Methods
Loomes et al. (2025) conducted a PRISMA-guided systematic review (Page et al., 2021), searching six major databases. Eligible studies used qualitative data to explore the experiences of autistic people with REDs or the perspectives of carers and ED professionals. REDs included AN or restrictive Other Specified Feeding or Eating Disorder (OSFED). Autism and RED diagnoses had to be clinically confirmed or assessed using validated tools, and commentaries, letters, conference abstracts, review articles, and non-English studies were excluded.
The search identified 1,690 records. After removing duplicates and independently screening abstracts and full texts (with strong agreement), nine studies met the inclusion criteria. Study quality was assessed using the CASP checklist: most were rated high, with one medium (CASP, 2018). A thematic synthesis (Thomas & Harden, 2008) was then undertaken. Researchers initially coded themes independently before refining them collaboratively, guided by a neuro-affirmative approach to ensure sensitivity to autistic perspectives.
Results
All nine studies focused on AN and were based in the UK, though two also included participants from the USA and Canada. Across the studies, there were 58 autistic adults with AN (67% female; 39 participants were female, 2 non-binary, 1 male; gender unreported in one study), 40 carers, and 32 professionals. Only two studies reported ethnicity (predominantly white).
Four key themes and several subthemes emerged.
Theme 1: Diverse Mechanisms Linking Autism and Restrictive Eating
Many reported that sensory needs made eating distressing, while interoceptive awareness difficulties reduced recognition of hunger and fullness, contributing to overwhelming emotions. Thinking style differences, such as routine preference and literalness, encouraged strict rules around food and exercise. Social and communication difficulties contributed to loneliness, bullying and feeling different, and although weight and shape concerns sometimes emerged, they were often secondary drivers. Overall, restrictive eating developed due to sensory and emotional overwhelm, cognitive differences and social stress.
Theme 2: The Journey to Self-Understanding
Many individuals developed AN years before their autism was recognised, attributing it to lack of identity. During that period, AN provided structure, distraction and temporary identity. Once diagnosed, participants recognised the value of an autism diagnosis, which offered clarity. However, delays to diagnosis were common, linked to unclear referral pathways, limited clinician confidence, and assessment tools based on male presentations.
Theme 3: Experiences of Eating Disorder Services
Autistic individuals frequently felt misunderstood by professionals, who often lacked autism awareness. Some disengaged from treatment after feeling judged or dismissed. This was reinforced in clinicians’ uncertainty and lack of confidence in their ability to distinguish between autistic and anorexic traits. Participants also felt let down by current treatments like CBT-ED, which weren’t suited to autistic needs, assuming skills such as ease in identifying emotions. Nevertheless, some reported positive experiences once autism was recognised, especially when professionals took time to build relationships. Lastly, carers highlighted increased burden, often compensating for gaps in autism-specific support.
Theme 4: Treatment Adaptations
Participants recommended sensory adaptations (quiet spaces, sensory-aware meal plans) and broader communication strategies (concrete questions, written summaries). Services should accommodate different thinking styles and allow for more time to build trust. A neuroaffirmative approach that respects autistic identity was key, alongside recognition that one size does not fit all. Services should build adaptive coping skills, such as emotion regulation, and provide support for loved ones. Finally, specialist autism training was emphasised for staff.
Findings reveal that autism shapes the development, experience and treatment of anorexia nervosa through sensory, emotional, cognitive and social mechanisms.
Conclusions
The authors concluded that autism-related differences play a significant role in how AN develops and is maintained, yet these factors are often overlooked in current treatments. They underscore the need to progress and evaluate novel or adapted interventions for autistic people with REDs. They also highlighted major gaps in the evidence base, noting that existing qualitative research relies heavily on autistic adult women and urgently requires more diverse samples, including adolescents and greater gender diversity. Finally, the authors emphasised that consistent training on autism for ED clinicians is essential to ensure high-quality care for this population.
Autism-related differences shape how anorexia nervosa develops and persists, yet current services remain ill-equipped to address them.
Strengths and limitations
The review is the first systematic synthesis of qualitative research exploring autistic experiences of REDs. The authors successfully identified consistent, cross-cutting themes in how autistic traits relate to REDs, service gaps and subsequent adaptations. By integrating autistic individuals, carers, and professionals, the review achieves a rich and nuanced understanding. Carer accounts are particularly valuable, offering insight into distress that autistic individuals may struggle to communicate (Hughes et al., 2023).
Limitations stem from the review itself and the included studies. The predominance of UK research, influenced by the exclusion of non-English studies, narrows the findings to UK diagnostic and service frameworks. These differ from international contexts. For instance, several Asian countries have chronically underfunded mental health services, with pervasive stigma further limiting help-seeking and access to assessment and treatment (Vaishnav et al., 2023; Chisholm et al., 2019). Such differences likely shape autistic and RED experiences differently, limiting the transferability of the findings.
The demographic profile of the included samples also raises concerns. Most participants were autistic adult women, and ethnicity was inconsistently reported and typically white. This limits our understanding, as these conditions affect diverse age groups, genders, and racial and ethnic backgrounds, often in distinct ways (Dyches et al., 2004; Halbeisen et al., 2022). Autistic transgender populations are found to show higher rates of REDs than autistic cisgender groups and experience unique drivers of restrictive eating, such as gender dysphoria (White et al., 2025), which the review doesn’t capture. Consequently, variations in the wider autistic population are overlooked.
All included studies examined AN only, despite the review being framed as exploring REDs more broadly. This overlooks distinct presentations such as Avoidant Restrictive Food Intake Disorder (ARFID). ARFID is increasingly prevalent in autistic populations and may better reflect autistic sensory and interoceptive profiles (Sader et al., 2025), making its omission a significant gap. ARFID fell outside the review’s diagnostic scope, which focused on AN and restrictive OSFED.
Current qualitative evidence relies almost entirely on adult white women with anorexia nervosa, leaving adolescents, men, gender-diverse individuals, varied ethnicities and ARFID presentations critically underrepresented.
Implications for practice
An important implication of the review is the need to recognise autism earlier through clearer diagnostic pathways. Many participants were diagnosed with AN years before their autism was identified, resulting in treatment that did not meet their needs. Policy could require ED services to use mandatory autism-screening tools at first contact, which may be particularly effective for identifying individuals who mask symptoms, especially women (Alaghband-Rad et al., 2023). A positive screen should activate a structured referral pathway for specialist autism assessment, ideally embedded within ED services to minimise delays. Earlier diagnosis enables timely and appropriate treatment adaptations and provides the clarity and validation that many participants described as meaningful.
The treatment adaptations identified in the review highlight how ED services must evolve to better accommodate autistic needs. The PEACE pathway (Tchanturia et al., 2020; 2025) represents the first structured attempt to operationalise many of these recommendations. Developed from studies synthesised in the review, the pathway integrates comprehensive clinician training to improve recognition and understanding of autistic presentations, identified by both participants and authors as essential. This is combined with sensory-aware service adjustments, including low-stimulating ward environments and a specialised PEACE menu tailored to sensory preferences, which reduces eating overwhelm. Psychological treatments are further adapted using concrete, visually structured materials and flexible pacing, which participants described as central to engagement. Greater emphasis is also placed on therapies such as Cognitive Remediation Therapy, which target thinking styles and emotional understanding, shifting focus away from shape- and weight-related concerns. Importantly, the pathway includes regular carer workshops and support groups to strengthen understanding of the co-occurrence and reduce caregiver burden. Although not yet widely implemented within or beyond the UK, the pathway provides a robust blueprint for delivering autism-informed eating disorder care. Scaling and adapting this model internationally should be a priority for policy and practice development.
The review also identifies several important directions for future research. Qualitative research is needed with more diverse participants, including adolescents, men, gender-diverse individuals, and those from varied ethnic and cultural backgrounds, to ensure that emerging models genuinely reflect the spectrum of lived experience. Furthermore, research should extend beyond AN to include ARFID and other restrictive presentations, where the interaction between autism and REDs remains poorly understood. Cross-national studies are particularly important for understanding how healthcare structures shape autistic experiences of REDs and for informing international service development.
Through my work in an eating disorders charity, I regularly meet autistic individuals who describe feeling exhausted, unheard, and forced to fit into treatment systems that do not recognise their needs. These experiences underscore the urgent need for services to adapt if support is to be genuinely effective.
Mandatory autism screening at first ED contact, structured referral pathways, and the PEACE pathway offer a concrete roadmap for services.
Statement of interests
Katie Fraser Allen has no conflicts of interest to declare.
Edited by
Dr Dafni Katsampa.
Links
Primary Paper
Rachel Loomes, Katy Chivers, Chloé Georgeaux-Healy, Will Mandy, Tom Jewell (2025). Understanding the autistic experience of restrictive eating disorders: A systematic review and qualitative synthesis. European Eating Disorders Review. https://doi.org/10.1002/erv.3181
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