Pediatrics
New AAP guideline redefines, streamlines care for faltering weight
The American Academy of Pediatrics and the North American Society for Pediatric Gastroenterology, Hepatology and Nutrition (NASPGHAN) have released their first joint evidence‑based guideline establishing standardized criteria and an efficient, whole‑child approach to diagnosing and managing faltering weight. The guideline replaces percentiles with z‑scores and emphasizes avoiding unnecessary testing while targeting interventions to children most likely to benefit.
Key practice recommendations
Diagnostic criteria
- Weight‑for‑length or BMI‑for‑age < –1.65 z-score (≈5th percentile).
- Weight‑gain velocity < –2 z-score in children <2 years.
- Drop of ≥1 z in weight, weight‑for‑length, or BMI.
When to test
- Order labs/imaging only if red flags suggest a focal problem or if faltering persists.
- Reserve endoscopy with biopsy for refractory cases or when required for definitive diagnosis.
Management
- Increase caloric intake with energy‑rich foods.
- Add oral nutritional supplements when needed.
- Address feeding difficulties with pediatric feeding‑disorder therapy.
- Reinforce safe, stable, nurturing caregiver–child interactions as key to growth.
Clinical takeaway: Use z‑score criteria to identify true faltering weight, limit testing to children with clear indications, and promptly initiate nutrition‑focused interventions plus feeding‑support therapies to restore healthy growth trajectories.
Source:
Kersten HB, et al; American Academy of Pediatrics and North American Society for Pediatric Gastroenterology, Hepatology and Nutrition. (2026, March 16). Pediatrics. Clinical Practice Guideline for Diagnosis and Management of Faltering Weight. https://pubmed.ncbi.nlm.nih.gov/41833317/