Table 3.

Diagnostic criteria for malnutrition according to the Global Leader Initiative on Malnutrition [19].

Two-Step Approach
First step: identify at-risk patients using any validated screening tool
Second step: at least one Phenotypic and one Etiologic criterion are necessary to diagnosis.
Phenotypic Criteria:	Etiologic Criteria:
Nonvolitional weight loss Low BMI Reduced muscle mass	Reduced food intake or assimilation
	Disease burden/inflammation

BMI, Body Mass Index.