Current ARFID assessed via Feeding and Eating Disorders Model from the "Enhanced" Structured Interview for DSM-5 (SCID-5)
Normal TSH or free T4 levels to rule out thyroid disease as cause of symptoms inclusionary for randomization
Negative celiac screening panel indicating no active celiac disease as cause of symptoms inclusionary for randomization
Fluency and literacy in English
You may not be if
Patient requires weight restoration treatment (e.g., \< 5th percentile of BMI, height, or weight for sex and age; patient has fallen off individual growth trajectory; patient's medical providers have recommended weight restoration) such that 15 sessions of CBT-AR is not appropriate
Pregnancy, breastfeeding, or recent initiation/cessation of estrogen-containing systemic contraceptives within 8 weeks of the pre-treatment study visit (as these could impact neuroimaging)
Current/history of psychosis via Mini-International Neuropsychiatric Interview child/adolescent version (MINI KID)
Substance/alcohol use disorder (active within the past month) via MINI KID
Medical instability requiring inpatient care according to the American Psychiatric Association 2006 treatment guidelines for eating disorders
Laboratory abnormalities indicating a need for higher level of care (assessed by complete blood count and comprehensive metabolic panel) exclusionary for randomization
Complete lack of oral intake (suggesting a need for inpatient care)
Tube feeding (suggesting a need for tube weaning) Significant weight/shape concern-motivating eating pathology as evidenced by a global Eating Disorders Examination Questionnaire (EDE-Q) score greater than 4
Active suicidal ideation with intent or plan via the 5-item Self-Injurious Thoughts and Behaviors Interview-Revised (SITBI-R)
Contraindications to MRI
History of major gastrointestinal tract surgery or serious medical condition (e.g., cancer)