Paeds · adolescent-and-young-adult-medicine

Eating disorders: refeeding and multidisciplinary care

Also known as Refeeding syndrome · Nutritional rehabilitation in anorexia nervosa · Family-based treatment · Maudsley model · Multidisciplinary eating-disorder care · Higher-calorie refeeding · Eating disorder inpatient management

A fellowship approach to refeeding the malnourished adolescent with an eating disorder and to the multidisciplinary team that carries recovery: refeeding-syndrome risk stratification and prevention, phosphate–magnesium–potassium and thiamine management, the conservative-versus-higher-calorie evidence, family-based treatment as first-line therapy, and tiered care across outpatient, day-program and inpatient settings across ANZ, UK, US and Canada.

high12 referencesUpdated 12 July 202621 min readVerification in progress

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RACP General PaediatricsRACP DWERACP DCEMRCPCHABPRCPSC Pediatrics

Red flags

Falling serum phosphate, potassium or magnesium during the first days of refeeding — the sentinel biochemistry of refeeding syndromeNew arrhythmia or prolonged QTc on ECG during refeeding — hypokalaemia, hypophosphataemia or hypomagnesaemia can arrest the heartTachycardia, rising respiratory rate or new oedema on a refeeding ward — evolving heart failure in the malnourished myocardiumConfusion, ataxia or ophthalmoplegia in a high-risk refed patient — Wernicke encephalopathy from thiamine depletionRapidly falling phosphate with weakness or respiratory compromise — severe hypophosphataemia is a medical emergencySuicidal ideation, escalating self-harm or acute psychiatric deterioration — refeeding alone does not treat the mental illnessAtypical anorexia with significant weight loss but normal/higher weight — the same physiological and refeeding risk hides behind a reassuring number

Life stages

adolescentyoung-adult-transition

Care settings

outpatientwarded-acutepicurural-remotetelehealth

Clinical exam formats

written-onlyracp-dce-long-caseracp-dce-short-casemrcpch-communicationrcpsc-structured-oral

Board mappings

General and Adolescent PaediatricsAdolescent mental health and eating disordersCurrent 2026 PREP curriculum — Learning Objective 1.2.1: Communicate with a child or young person in a way which is appropriate to the position of that child within their own cultureCurrent 2026 PREP curriculum — Learning Objective 3.4.5: Manage the physical complications of eating disorders including refeeding syndromeRenewed curriculum for first-year trainees from 2027 — Learning goal 5: Clinical assessment – essential general paediatricsRenewed curriculum for first-year trainees from 2027 — Learning goal 6: Clinical management – essential general paediatricsRenewed curriculum for first-year trainees from 2027 — Learning goal 15: Essential general paediatricsClinical ApplicationsAdolescent medicine and mental healthLong CasesShort CasesCommunication stations4. Professional skills and knowledge: Patient management8. Child safeguarding and mental health10. Nutrition, fluid balance and metabolic medicine11. Adolescent healthGeneral Paediatrics: Provides safe nutritional rehabilitation, refeeding-syndrome prevention and coordinated multidisciplinary and family-based care for adolescents with eating disordersFoundation of Practice (FOP)Applied Knowledge in Practice (AKP)Adolescent health, nutrition and mental healthHistoryCommunicationClinicalChild development and safeguardingGeneral Pediatrics Content Outline — Domain 1: Preventive Pediatrics/Well-Child CareGeneral Pediatrics Content Outline — Domain 11: Adolescent MedicineGeneral Pediatrics Content Outline — Domain 16: Mental and Behavioral HealthGeneral Pediatrics EPA 5: Coordinating care for children and adolescents with eating disordersPatient Care 1: History and Physical ExaminationPatient Care 5: Patient ManagementInterpersonal and Communication Skills 1: Patient- and Family-Centered CommunicationSystems-Based Practice 3: System Navigation for Patient Centered Care – Coordination of CareProfessionalism 1: Professional Behavior and Ethical PrinciplesMedical ExpertCollaboratorHealth AdvocateProfessionalPediatrics: Core EPA — Managing the medical complications of eating disorders and coordinating multidisciplinary care

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Target exams

RACP General PaediatricsRACP DWERACP DCEMRCPCHABPRCPSC Pediatrics

Red flags

Life stages

adolescentyoung-adult-transition

Care settings

outpatientwarded-acutepicurural-remotetelehealth

Clinical exam formats

written-onlyracp-dce-long-caseracp-dce-short-casemrcpch-communicationrcpsc-structured-oral

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The fellowship answer

Refeeding a malnourished adolescent with an eating disorder is a controlled, monitored process, not "just start feeding". Risk-stratify first: the profoundly underweight, rapidly weight-lost, biochemically deranged and the chronically starved are at high risk of refeeding syndrome. Give thiamine before or with the first feed, correct baseline phosphate, potassium and magnesium deficits, start calories at a level matched to that risk, and monitor phosphate–magnesium–potassium daily (twice-daily in the highest risk) with daily weight and vitals. Higher-calorie regimens shorten admission but only with intensive monitoring and proactive electrolyte replacement. Build the multidisciplinary team — medical, dietetic, nursing, mental-health, family and social — around the patient from day one, deliver family-based treatment as first-line psychological therapy, and never discharge on weight alone: medical stability, psychological readiness and team capacity are all required. [1] [7] [9]

Overview & Definition

A 14-year-old girl is admitted at 71% median BMI after months of restriction. The temptation is to see the job as "feed her until she is a safe weight and send her home". That framing is how patients relapse, develop refeeding syndrome, or die. Refeeding an eating-disordered adolescent is two jobs done by one overlapping team: medical stabilisation — correcting the physiology so the body can tolerate food again — and nutritional rehabilitation — restoring weight and the psychological scaffold that keeps it on. The clinician who does only the first has failed. [1] [3]

Refeeding syndrome is the metabolic and electrolyte collapse that follows the reinstatement of nutrition after a period of deprivation. The trigger is carbohydrate: glucose drives an insulin surge, and insulin shifts phosphate, potassium and magnesium into cells. Serum phosphate falls first and most predictably, and a falling phosphate in the first days of feeding is the sentinel marker that the patient is refeeding too fast. The syndrome is preventable, and prevention — thiamine, electrolyte correction, a matched calorie start, and serial biochemistry — is the whole point of this topic. [3] [4]

The evidence base has moved. For decades the dogma was to start very low and advance slowly. A series of trials — the multicentre STRONG trial and its follow-ups — has shown that higher-calorie refeeding shortens admission and accelerates weight gain, provided monitoring is intensive and phosphate is replaced proactively rather than reactively. The modern answer is not "high calories for everyone" or "low calories for everyone"; it is risk-matched calories with monitoring matched to the dose. [7] [8] [6]

[9] [1]

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References12Show ledger

[1]Rosen DS; American Academy of Pediatrics Committee on Adolescence Identification and management of eating disorders in children and adolescents. Pediatrics, 2010.PMID 21115584
[2]Nicholls DE; Lynn R; Viner RM Childhood eating disorders: British national surveillance study. British Journal of Psychiatry, 2011.PMID 21972279
[3]Mehanna HM; Moledina J; Travis J Refeeding syndrome: what it is, and how to prevent and treat it. BMJ, 2008.PMID 18583681
[4]O'Connor G; Nicholls D Refeeding hypophosphatemia in adolescents with anorexia nervosa: a systematic review. Nutrition in Clinical Practice, 2013.PMID 23459608
[5]Ornstein RM; Golden NH; Jacobson MS; Shenker IR Hypophosphatemia during nutritional rehabilitation in anorexia nervosa: implications for refeeding and monitoring. Journal of Adolescent Health, 2003.PMID 12507806
[6]Garber AK; Sawyer SM; Golden NH; Guarda AS A systematic review of approaches to refeeding in patients with anorexia nervosa. International Journal of Eating Disorders, 2016.PMID 26661289
[7]Garber AK; Cheng J; Accurso EC; Adams SH Short-term Outcomes of the Study of Refeeding to Optimize Inpatient Gains for Patients With Anorexia Nervosa: A Multicenter Randomized Clinical Trial. JAMA Pediatrics, 2021.PMID 33074282
[8]Golden NH; Cheng J; Kapphahn CJ; Buckelew SM Higher-Calorie Refeeding in Anorexia Nervosa: 1-Year Outcomes From a Randomized Controlled Trial. Pediatrics, 2021.PMID 33753542
[9]Lock J; Le Grange D; Agras WS; Moye A Randomized clinical trial comparing family-based treatment with adolescent-focused individual therapy for adolescents with anorexia nervosa. Archives of General Psychiatry, 2010.PMID 20921118
[10]American Psychiatric Association Treatment of patients with eating disorders, third edition. American Psychiatric Association. American Journal of Psychiatry, 2006.PMID 16925191
[11]Hay P; Chinn D; Forbes D; Madden S Royal Australian and New Zealand College of Psychiatrists clinical practice guidelines for the treatment of eating disorders. Australian and New Zealand Journal of Psychiatry, 2014.PMID 25351912
[12]Accurso EC; Cheng J; Machen VI; Buckelew S Hospital-based higher calorie refeeding and mealtime distress in adolescents and young adults with anorexia nervosa or atypical anorexia nervosa. International Journal of Eating Disorders, 2023.PMID 36919264

Eating disorders: refeeding and multidisciplinary care

high12 referencesUpdated 12 July 202621 min readVerification in progress

Practise this topic

Overview & Definition

[9]

[1]

Paediatrics Fellowship Pro

You have read the opening of this topic. The complete unit — every section and its primary-source references — is part of the Paediatrics Fellowship fellowship atlas.

References12Show ledger

[1]Rosen DS; American Academy of Pediatrics Committee on Adolescence Identification and management of eating disorders in children and adolescents. Pediatrics, 2010.PMID 21115584
[2]Nicholls DE; Lynn R; Viner RM Childhood eating disorders: British national surveillance study. British Journal of Psychiatry, 2011.PMID 21972279
[3]Mehanna HM; Moledina J; Travis J Refeeding syndrome: what it is, and how to prevent and treat it. BMJ, 2008.PMID 18583681
[4]O'Connor G; Nicholls D Refeeding hypophosphatemia in adolescents with anorexia nervosa: a systematic review. Nutrition in Clinical Practice, 2013.PMID 23459608
[5]Ornstein RM; Golden NH; Jacobson MS; Shenker IR Hypophosphatemia during nutritional rehabilitation in anorexia nervosa: implications for refeeding and monitoring. Journal of Adolescent Health, 2003.PMID 12507806
[6]Garber AK; Sawyer SM; Golden NH; Guarda AS A systematic review of approaches to refeeding in patients with anorexia nervosa. International Journal of Eating Disorders, 2016.PMID 26661289
[7]Garber AK; Cheng J; Accurso EC; Adams SH Short-term Outcomes of the Study of Refeeding to Optimize Inpatient Gains for Patients With Anorexia Nervosa: A Multicenter Randomized Clinical Trial. JAMA Pediatrics, 2021.PMID 33074282
[8]Golden NH; Cheng J; Kapphahn CJ; Buckelew SM Higher-Calorie Refeeding in Anorexia Nervosa: 1-Year Outcomes From a Randomized Controlled Trial. Pediatrics, 2021.PMID 33753542
[9]Lock J; Le Grange D; Agras WS; Moye A Randomized clinical trial comparing family-based treatment with adolescent-focused individual therapy for adolescents with anorexia nervosa. Archives of General Psychiatry, 2010.PMID 20921118
[10]American Psychiatric Association Treatment of patients with eating disorders, third edition. American Psychiatric Association. American Journal of Psychiatry, 2006.PMID 16925191
[11]Hay P; Chinn D; Forbes D; Madden S Royal Australian and New Zealand College of Psychiatrists clinical practice guidelines for the treatment of eating disorders. Australian and New Zealand Journal of Psychiatry, 2014.PMID 25351912
[12]Accurso EC; Cheng J; Machen VI; Buckelew S Hospital-based higher calorie refeeding and mealtime distress in adolescents and young adults with anorexia nervosa or atypical anorexia nervosa. International Journal of Eating Disorders, 2023.PMID 36919264