Appetite and childhood malnutrition : A narrative review identifying evidence gaps between clinical practice and research
2025
Toni, Alemayehu Teklu | Girma, Tsinuel | Hetherington, Marion M. | Gonzales, Gerard Bryan | Forde, Ciarán G.
Severe Acute Malnutrition (SAM) is a critical global health issue, contributing to approximately one-half of all child mortality worldwide. SAM management guidelines recommend the use of appetite assessment determined by an “appetite test” to distinguish between complicated and uncomplicated SAM, subsequently guiding clinical decisions regarding outpatient versus inpatient care and discharge from hospital. Despite the widespread utilization of this recommendation, its validity lacks substantial evidence within the existing literature. Hence, the aims of this narrative review were to provide an overview of the SAM diagnostic and management guideline recommendations concerning the use of appetite assessment; to review the existing knowledge base supporting this clinical practice. The review identified gaps between the clinical use of appetite assessment in SAM management and the available supporting scientific evidence. Additionally, both the opportunities and challenges associated with appetite assessment methods used in clinical practice were highlighted and discussed in relation to existing literature. Further studies with more rigorous methods are needed to bridge these gaps and formulate evidence-based clinical practice. There is also a need to adapt and validate the existing appetite assessment tools to ensure they are tailored to the specific population, setting, and primary purpose of assessing appetite in children who have already developed SAM.
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