Research
Mixed
Diagnosing malnutrition requires the concurrent presence of at least one phenotypic criterion (weight loss, low BMI, or reduced muscle mass) and one etiologic criterion (reduced food intake/assimilation or disease burden/inflammation).
To diagnose malnutrition in a clinical setting, you must find evidence of physical changes (like weight loss, low BMI, or muscle loss) AND evidence of a cause (like reduced food intake or active inflammation). Neither alone is sufficient for a diagnosis.
StrongSupportsHIGH confidence
To diagnose malnutrition at least one phenotypic criterion and one etiologic criterion should be present.
Why this rating
Based on global consensus of major clinical nutrition societies (ASPEN, ESPEN, etc.).
Source
GLIM criteria for the diagnosis of malnutrition – A consensus report from the global clinical nutrition community
Tommy Cederholm et al. · Journal of Cachexia Sarcopenia and Muscle · 2019
DOI 10.1002/jcsm.12383
clinical_guidelineCited 1,643×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Inflammation and disease burden are critical etiologic criteria for malnutrition, contributing to altered metabolism, increased muscle catabolism, and adverse outcomes.Strong
- Reduced muscle mass is a key phenotypic criterion for malnutrition, measurable by DXA, BIA, CT, MRI, or anthropometric proxies like calf/arm circumference.Strong
Related findings · Mixed
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