Eating Disorder

Ava, 22, college senior

Fictional teaching case

Compare the formulations ↓

Presentation

BMI 17.8, restricting intake to ~800 cal/day with compulsive exercise. GPA 3.9. Reports feeling 'in control' when restricting but terrified of losing control around food. Fainting episodes. Amenorrhea for 6 months. Roommate called campus counseling center. Ava says: 'I don't have an eating disorder. I'm just disciplined. Everyone in my family is heavy and I refuse to end up like them.'

Read the full case history and clinical context

Parents divorced at 10. Mother is obese and emotionally volatile: 'food was love, food was comfort, food was everything.' Father critical, appearance-focused, praised Ava for being 'the thin one.' Restriction began at 15 after a comment from a ballet teacher. Hospitalized briefly at 17 but left AMA. Currently in a highly competitive pre-med program. Identifies as queer. No current relationship.

Clinical note: Anorexia nervosa carries one of the highest mortality rates in psychiatry, from medical complications and from suicide, though the often-repeated claim that it is the highest of any mental illness does not survive comparison with the substance use disorders. Medical monitoring (weight, vitals, labs) is non-negotiable regardless of modality. What makes urgent medical assessment the first step here is the fainting and six months of amenorrhea rather than the BMI on its own: a great deal of outpatient anorexia treatment, including the FBT and CBT-E described below, is delivered at lower weights than Ava's to patients who are medically stable. The evidence hierarchy is clear at one end: FBT/Maudsley for adolescent AN achieves ~50% full remission (Lock & Le Grange, 2013; NICE NG69: recommended). For adults, CBT-E (Fairburn et al., 2009) is first-line with strong transdiagnostic evidence; DBT shows moderate-to-large effects for binge-purge presentations (Safer et al., 2001). RO-DBT targets the overcontrol profile (rigid, perfectionistic restricting) that standard DBT was not designed for (Lynch et al., 2020). But the deepest tension in ED treatment is epistemological: CBT-E asks what maintains the disorder (dietary restriction, overvaluation of shape/weight) and targets those mechanisms directly; it doesn't ask why. Psychodynamic approaches see restriction as meaningful: a compromise formation, a defense against engulfment, an embodied negotiation of autonomy. Feminist approaches see it as a rational response to a culture that rewards women for disappearing. IFS depathologizes the restricting part while still working toward change. None of these frameworks is wrong, but they are operating at different levels of analysis, and the treatment implications diverge sharply. Ava's queer identity adds a critical dimension: LGBTQ+ individuals have significantly elevated ED rates (Parker & Harriger, 2020), body image distress intersects with gender identity in ways most ED manuals don't address, and the ballet history layers a third body-surveillance system on top of family and culture. The clinician must decide: stabilize first (behavioral), then explore meaning (depth work), or risk losing the client by starting with meaning while her body is in medical danger?

Compare how approaches understand this case

Two approaches to begin with; change them below. These are starting examples, not a clinical ranking.

Showing 2 of 8 formulations.

Cognitive-Behavioral

CBT-E

Formulation

Ava's self-worth is disproportionately dependent on eating, shape, and weight, and her ability to control them. This overvaluation drives the dietary restriction, which drives the physiological and psychological consequences (cognitive rigidity, preoccupation, bingeing risk). The maintaining mechanisms are the clinical target, not the developmental history.

Treatment focus

Stage One: real-time self-monitoring, collaborative weekly weighing, and establishing regular eating (three meals, two to three snacks). Because Ava is underweight, the protocol adds a step the standard version does not have: helping her reach her own decision to regain weight, which CBT-E treats as a choice she has to make rather than one imposed on her. Stage Two: a short joint review of progress and obstacles. Stage Three: whichever maintaining mechanisms are actually active, which may include over-evaluation of shape and weight, dietary restraint, clinical perfectionism, core low self-esteem, mood intolerance, and interpersonal difficulty. Stage Four: ending well and relapse prevention.

Therapeutic voice

"Right now your brain is running on fumes, and that's making everything feel more urgent and rigid. The first step isn't about weight: it's about getting your brain fed enough to think clearly about what you want."

Cognitive-Behavioral

DBT

Formulation

Restriction is emotion regulation through behavioral control. When Ava feels out of control emotionally (abandonment fear, shame, anger at her parents), she regulates through the one thing she can control, which is intake. Compulsive exercise does the same job. The behaviors are maladaptive but functional, which is why removing them without replacing the function tends to fail. The honest caveat is that Ava's profile is overcontrolled rather than undercontrolled, and standard DBT's biosocial model was built for the second. Lynch's RO-DBT exists because of that gap.

Treatment focus

Stage 1: Target life-threatening behaviors (restriction at this BMI is medical risk). Diary card tracking ED behaviors, urges, and emotions. Distress tolerance skills. Emotion regulation skills to replace restriction. Mindful eating.

Therapeutic voice

"The restricting works. It does bring a feeling of control. I'm not going to pretend it doesn't. But it's also putting you in the hospital. Can we find ways to get that control feeling without the medical danger?"

Where Approaches Genuinely Disagree

Behavioral control first or understand the function?
CBT-E

Normalize eating behavior first. The starved brain cannot do therapy.

vs.
Short-Term Psychodynamic

The eating disorder serves a function: control, self-punishment, expression. Treating behavior without meaning risks symptom substitution.

Philosophical Lenses

These are not treatment plans. They are ways of seeing — philosophical perspectives that illuminate aspects of this case that clinical modalities may not address directly.

Ava's restriction is not simply a pathology of body image. It is a response to the situation of being a woman in a culture that simultaneously demands women's bodily compliance and denies women's subjectivity. The 'control' she feels is the only form of freedom available within a system that controls her: an attempt at transcendence through the body that collapses into immanence. Her 3.9 GPA and her 800 calories are the same gesture: proving she can exceed the demands placed on her. De Beauvoir would say that individual therapy without addressing the structures that produce this situation is inadequate: Ava is not merely sick, she is enacting the impossible contradictions of femininity.

Ava's relationship to food is a relationship to the maternal body: to incorporation, boundary, and abjection. Restriction is a refusal of the abject: the formless, the messy, the out-of-control. By controlling what enters her body, she maintains the boundary between self and not-self that the maternal relationship first established and first threatened. Her terror of 'losing control around food' is a terror of dissolution: of the body's porousness, its refusal to stay contained. Kristeva would see the eating disorder as a crisis of subjectivity that plays out at the border of the body, where meaning and matter, self and other, are never fully separable.

The clinical gaze that diagnoses Ava (BMI calculations, calorie counts, amenorrhea as symptom) reproduces the same disciplinary logic that produced the disorder. Her body is measured, weighed, monitored, and found deficient. The eating disorder and its treatment are both technologies of the self in a biopolitical regime that governs through the body. Ava has simply taken the culture's techniques of bodily management (dieting, exercise, self-surveillance) to their logical conclusion. The question is not how to correct her deviance but how to recognize that her 'disorder' and the culture's 'health' are on the same continuum.


Sources & Method

This is a composite fictional case — no real client is depicted. Formulations represent how each modality would typically conceptualize and approach a case with this presentation, based on published clinical literature and training materials. Each formulation draws on the modality's own theoretical framework, key texts, and clinical principles as documented on its modality page. Full source citations for every modality are available on the Sources page.