Eating disorders are potentially life-threatening psychological disorders in which there are pathological eating and related behaviors, as well as disturbances in the experience of food and body, that cause distress and/or impairment. Early intervention may decrease the risk of long-term pathology and disability.
Prevalence rates of Anorexia and Bulimia are both over 1% in females and 0.3-0.5% in males. Binge Eating Disorder is the most common eating disorder in adults, estimated to affect approximately 1.5 million U.S. adults, followed by Bulimia Nervosa (~500,000) and Anorexia Nervosa (~175,000). For US adolescents aged 13–18 years estimated prevalence rates of Anorexia Nervosa is 0.3%, Bulimia Nervosa at 0.9%, and Binge Eating Disorder at 1.6%. The mean age of onset for each disorder was 12.5 years (Attia, 2025).
Eating disorders carry significantly elevated mortality risk and are among the highest mortality rates of any psychiatric disorder, with Anorexia Nervosa having over 5% mortality risk ratio or approximately 5–6 times that of the general population. Suicide and cardiac deaths are the two predominant causes, accounting for approximately 21% and 19% of deaths, respectively (Semchishen, 2026).
Primary Care Providers are in an ideal position to prevent, identify, assess and provide ongoing care to individuals and families experiencing eating disorders. Education about nutrition and healthy eating can help with prevention. Primary Care Providers are often the first clinicians to detect disordered eating. Recognizing warning signs and timely screening can lead to early identification. Diagnosis and early intervention can significantly improve patient outcome.
The Primary Care Provider can provide initial assessments to diagnose, medically manage, and facilitate referrals along with participating and helping to coordinate the multidisciplinary treatment team, when indicated.
The unique long-term relationship and established trust of a Primary Care Provider can often be crucial factors in overcoming fear and resistance and help the patient and family engage in treatment.
This toolkit, provided by ACCESS Mental Health Connecticut, provides a summary of guidelines as well as links to more detailed guidelines and other helpful links for practitioners, patients and families.
ACCESS Mental Health Connecticut is always just a phone call or click away and is available to help Primary Care Practitioners, their patients and families with diagnostic assistance, advice, resource and referral assistance. www.accessmhct.com
Anorexia Nervosa (AN)
Bulimia Nervosa (BN)
Binge Eating Disorder (BED)
Avoidant and Restrictive Food Intake Disorder (ARFID)
Other Specified Feeding or Eating Disorder (OSFED)
Other specified feeding or eating disorders that do not meet criteria for other eating disorders noted above including:
Guidelines for Diagnosis and Screening
Early Identification is key. PCPs are in a unique position to detect disordered eating early and interrupt their progression (Hornberger et al, 2021).
All disordered eating is not an eating disorder.
“Disordered eating” refers to a spectrum of problematic eating behaviors and distorted attitudes towards food, weight, shape, and appearance. Disordered eating patterns can vary in severity but do not meet the frequency, duration and/or psychological criteria for a diagnosable eating disorder. Identifying and early intervention can prevent progression to a more serious disorder.
Screen during routine visits or other symptom related appointments
Red Flags
(Helpful but not diagnostic, significant false negative or positive and do not include screening questions for ARFID)
ESP-PC (Eating Disorder Screen for Primary Care)
https://pmc.ncbi.nlm.nih.gov/articles/PMC1494802/
SCOFF:
SDE (Screen for Disordered Eating) 5 item screen:
https://www.nyeatingdisorders.org/_assets/pdf/screen_for_disordered_eating.pdf
BRIGHT FUTURES – Eating Disorders Screening Questions
https://www.brightfutures.org/mentalhealth/pdf/bridges/eat_disorder.pdfa
Guidelines for Assessment
Primary Care Providers are often the first clinicians to detect disordered eating. Diagnosis and early intervention can significantly improve patient outcome. In addition to diagnosis, immediate medical priorities include determining the level of care, establishing an initial Target Goal Weight, assessing for medical stability and the possible need for emergency intervention (see criteria below).
*** An Immediate medical priority is to evaluate the medical stability and safety risk to determine if urgent referral for ED to a hospital may be required.
Suggested Criteria:
One or more of the following justify referral for urgent assessment and hospitalization:
Additional Considerations:
Review psychosocial history including:
Estimating Severity of Malnutrition/Determining Target Goal Weight
(from Golden et al, 2015)
A proposed classification of the degree of malnutrition for adolescents with eating disorders:
| Mild | Moderate | Severe | |
| % Median BMI | 80-90% | 70-79% | <70% |
| MBI z score | -1 to-1.9 | -2 to -2.9 | – 3 or more |
| Weight Loss | >10% Body mass loss | >15% Body Mass loss | 20% body mass loss in 1 year Or >10% loss in 6 months |
Golden et al, 2015
CDC Growth Charts: https://www.cdc.gov/growthcharts/
CDC BMI Charts: https://www.cdc.gov/growthcharts/Extended-BMI-Charts.html
(for complications and differential diagnosis)
Primary Care Providers are crucial in evaluating medical stability and determining the urgency of treatment for patients with eating disorders.
Gastrointestinal: Inflammatory bowel disease; celiac disease
| Prevalence of Psychiatric Comorbidities | |||
| Anorexia N | Bulimia N | Binge Eating D/O | |
| Major Depression | 49.5% | 76.3% | 65.55% |
| Anxiety D/O | 40.5% | 44.6% | 59.0% |
| Suicide Attempts | 24.9% | 31.4% | 22.9% |
Crone et al, 2023
Core Treatment Goals
Central objectives in treating eating disorders include restoring normal eating behaviors, addressing and correcting distorted beliefs about body shape and weight, and achieving weight restoration when needed. These goals are fundamental to improving overall health and psychological well-being.
Multidisciplinary Team Approach
The treatment of eating disorders requires the involvement of a multidisciplinary team consisting of a primary care clinician, therapist, and dietitian. Establishing a compassionate therapeutic alliance is essential, and the approach should actively engage both the patient and their family to foster support and collaboration throughout the recovery process.
Levels of Care
Treatment settings can vary widely, ranging from outpatient care to residential and inpatient programs. All levels of care involve a multidisciplinary team (primary care clinician, therapist, dietitian), with increasing intensity of supervision and meal support at higher levels.
The selection of the appropriate setting should be guided by symptom severity, vital signs, laboratory findings, age, suicide risk, and treatment history. It is important to choose the least restrictive environment that meets both clinical requirements and patient preferences.
Stepping up and stepping down care
All levels of care incorporate the same multidisciplinary team, but higher levels offer increased supervision and meal support.
Patients should be transitioned to a more intensive setting if outpatient treatment proves ineffective or if medical or psychiatric instability arises.
Conversely, as patients achieve clinical stability, they should be moved to less intensive settings to promote independence and ongoing recovery.
Outpatient Treatment- Preferred
Most patients can be treated in an outpatient setting utilizing collaborative care with a multidisciplinary treatment team that has expertise in treating eating disorders, including the primary care provider, a therapist with expertise in eating disorders, a nutritionist and a psychiatrist or other specialists as indicated. Patients and family should be considered part of the treatment team. It is imperative that the team collaborate and have clear communication.
The primary care provider can assess and monitor health, provide medical information and guidance as well as facilitate referrals and coordinate care with other providers. When a nutritionist is involved, they may help set target weights, recommended rate of and nutritional guidelines in coordination with the PCP and behavioral clinician.
Comorbid psychiatric and medical conditions need to be monitored and addressed, especially given the high incidence of comorbidity and risk.
Partial Hospital Programs (PHP)
-Daily structured outpatient program
4 hours/day, 5 days per week
or Intensive Outpatient Programs (IOP)
– Shorter day, may be non-daily
Indicated when outpatient treatment is insufficient and professional supervision and more frequent and intensive supervision is needed for the patient to eat, gain weight in a healthy and safe manner. Weight is typically 80-90% of Target Treatment Weight
These provide intermediate levels of care with additional structure, treatment modalities and supervision
Often includes structured, monitored meals, group, family and individual therapy
May include medical monitoring and medication management
Residential Treatment
When IOP/PHP is insufficient to enact change or there is need for round the clock supervised treatment
Weight is often 75-80% of Target Treatment Weight
Hospital Based Stabilization and Treatment
When imminent threat to health or safety and need for acute intervention and monitoring are present.
See Criteria for Urgent Assessment/Hospitalization above.
Medical Hospitalization
Anorexia Nervosa
For children and adolescents, Family Based Treatment (FBT) is the recommended first-line approach.
Family-based therapy empowers parents to play a vital role in facilitating patients’ weight gain before progressively returning control to the patient. Family-based therapy shows higher remission rates and increased weight gain compared to individual therapy. Short hospitalizations followed by family-based therapy or outpatient programs yield similar outcomes to prolonged hospitalization. Studies of family-based therapy demonstrate higher remission rates and increased weight gain compared with individual therapy. Short hospitalizations for medical stabilization followed by family-based therapy or outpatient programs have similar outcomes as prolonged hospitalization therefore, the safest, least intensive treatment environment is recommended.
For Anorexia Nervosa in adults, no single psychotherapy has demonstrated superiority over others. CBT works by targeting the distorted thoughts and maladaptive behaviors that maintain ED symptoms. Psychodynamic psychotherapy, and specialist supportive clinical management are also options.
Bulimia Nervosa and Binge Eating Disorder
Children and Adolescents: FBT and CBT show positive results.
Adults: CBT is the first-line psychotherapy and is superior to other interventions. For binge-eating disorder, therapist-led CBT and self-help CBT are effective, with in-person CBT more effectively decreasing binge eating and dropout than self-guided CBT.
CBT focuses on addressing cognitive distortions that contribute to distortions in body image and eating.
Interpersonal Therapy (IT) is also first or second line treatment.
IT focuses on relational and social difficulties linked to problematic eating behaviors.
ARFID
American Academy of Pediatrics (AAP) recommends that management of ARFID focus on the dual goals of refeeding and normalization of eating, consistent with the treatment principles for other eating disorders. Patients with ARFID vary in their underlying psychological motivations for restrictive eating, individualized behavioral treatment strategies are needed.
Cognitive-behavioral therapy for ARFID (CBT-AR) is the most studied manualized treatment. It involves psychoeducation, regularization of eating patterns, exposure to novel/feared foods, and anxiety management.
Virtual Treatment Options- Offer outpatient and intensive outpatient treatment.
FINDING TREATMENT RESOURCES:
Medication Management for Eating Disorders
(not recommended as monotherapy)
Anorexia Nervosa
No FDA-approved medications exist. SSRIs do not promote weight gain or improve psychological symptoms but may be considered for comorbid depression, anxiety, or OCD. (Attia, 2025). However, caution is indicated due to low body weight.
Olanzapine may promote modest weight gain but is not a stand-alone treatment. (Off label)
Bupropion is contraindicated in anorexia and bulimia nervosa due to seizure risk. (Attia, 2025)
Consider Calcium Supplementation: 4-8 yo,1000mg, 9 up 1300mg and
Vitamin D Supplementation: 600iu
Bulimia Nervosa
Fluoxetine 60 mg/day is FDA-approved and reduces binge eating (SMD −0.29) and purging (SMD −0.51) compared with placebo.
The dose of fluoxetine for Bulimia Nervosa (60mg/d) is superior to the dose of 20 mg/d usually used to treat depression. Most effective doses of other SSRIs for bulimia nervosa and binge-eating disorder are not well established.
Binge-eating disorder
Lisdexamfetamine is the only FDA-approved medication.
Second-generation antidepressants and topiramate also reduce binge-eating frequency. A recent RCT found that behavioral weight loss therapy combined with naltrexone-bupropion achieved 57.1% binge-eating remission vs 17.7% with placebo.
ARFID
No medication is approved or specifically indicated for ARFID. Pharmacotherapy should be directed at treating underlying comorbid illness (e.g., anxiety) as necessary.
Cyproheptadine and low dose olanzapine have been used as adjunctive medication off label.
SSRIs have been shown to be helpful especially when there is co morbid anxiety or depression.
Mirtazapine increases appetite and decreases anxiety.
Ongoing medical monitoring should continue for the duration of active ED symptoms
In person appointments are necessary to assess safety and progress
Frequency of appointments should be weekly first and decreased as determined by treatment team and based on severity and potential to decline
Appointment should include:
Anorexia and Eating Disorders in Males – Symptoms in males may include:
Complicated Presentation with Transgender and Other In LGBTQ+ Individuals
Complicated presentations including diabetes & chronic disease, ASD and SUD; high risk and need for careful multidisciplinary collaboration
Refeeding Syndrome — Characterized by hypophosphatemia and fluid/electrolyte shifts — is rare and typically mild to moderate, managed with regular electrolyte monitoring and repletion. A more cautious approach may be warranted in severely malnourished patients (<70% median BMI or Target Weight)
Special Consideration with Athletes
“Female Athlete Triad”
“Male Athlete Triad”
Helpful Eating Disorders in Athletes Guideline
https://www.nationaleatingdisorders.org/eating-disorders-and-athletes-2/
EDs occur across all cultural and racial backgrounds
Neurodivergent individuals- at risk for ARFID as well as other eating disorders
ED patients always know more facts about food, but lots of misinformation
Multidisciplinary collaboration is an essential part of treatment. PCP plays an essential role in coordinating and collaborating with patients, family, and specialists, may include school and coaches. Communication and methods of information sharing need to be established and clear while respecting privacy.
Resources
ACCESS MENTAL HEALTH CT www.ACCESSMHCT.COM
Recommended Guidelines AAP: Identification and Management of Eating Disorders in Children and Adolescents https://doi.org/10.1542/peds.2020-040279
AAFP https://www.aafp.org/pubs/afp/issues/2021/0101/p22.html https://www.aafp.org/pubs/afp/issues/2021/0101/p22.html JAMA Eating Disorders – A Review https://jamanetwork.com/journals/jama/fullarticle/2831140
UBC Comprehensive Toolkit (University of British Columbia) https://ubccpd.ca/sites/default/files/documents/Eating-Disorders-Toolkit-for-PCP-2018.pdf
NEDA Provider Resources:
https://www.nationaleatingdisorders.org/i-have-a-patient-with-an-eating-disorder/
Other Resources
** Special thanks to Mariela Podolski M.D. for her advice and assistance