Summary

• Common in children under 1 year of age. Causative conditions may persist, leading to ongoing feeding difficulties during childhood.
• Results in the inadequate intake or intolerance of fluids or nutrients necessary to meet the requirements for healthy growth in the long term. Failure to thrive may be a consequence of unresolved feeding problems of any aetiology.
• Aetiologies are often complex and multifactorial, and are best managed by a multidisciplinary team. Causes include anatomical, neuromuscular/neurodevelopmental, immunological, physiological, and behavioural factors.
• Diagnosis is usually clinical, with a consistent history supported by dietetic assessment. Complementary diagnostic tests and subsequent management are guided by physical findings and severity of symptoms.
• Feeding disorders are usually subacute to chronic in nature. A sudden change in feeding habit may be associated with other conditions, notably infections, which need to be excluded.