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Malnutrition lacks a universal definition, leading to confusion in identification and reporting. This study examines various definitions and screening tools to provide guidelines for consistent documentation and scientific literature reporting.

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Area of Science:

  • Nutrition Science
  • Public Health
  • Healthcare Management

Background:

  • Malnutrition is a prevalent issue in health and social care.
  • There is a lack of consensus on its definition, prevalence, and identification methods.
  • Existing definitions and screening tools exhibit significant variability.

Purpose of the Study:

  • To critically analyze existing definitions and screening tools for malnutrition.
  • To identify the scope of confusion and misunderstanding arising from these variations.
  • To propose guidelines for consistent documentation and reporting of malnutrition.

Main Methods:

  • A critical examination of fifteen distinct definitions of malnutrition.
  • Assessment of the variability in definitions concerning nutritional components and outcomes.
  • Review of various nutrition screening tools and their intended applications across different settings and age groups.

Main Results:

  • Definitions of malnutrition vary widely, encompassing undernutrition, overnutrition, and specific nutrient intakes.
  • Screening tools are diverse in their development, intended use, and applicability to different care settings and populations.
  • The heterogeneity in definitions and tools creates substantial potential for confusion.

Conclusions:

  • Standardized guidelines are necessary for accurate malnutrition documentation in practice.
  • Clearer reporting standards are needed for scientific literature to reflect the true burden of malnutrition.
  • The proposed guidelines aim to reduce confusion and improve the understanding and management of malnutrition.