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	Narzędzie do oceny piśmienności żywieniowej	Gospodarczy Wskaźnik Różnorodności Diety
Dziedzina	Żywienie w zdrowiu publicznym	Żywienie w zdrowiu publicznym
Rodzina	Process / pipeline	Process / pipeline
Rok powstania	2007	2011
Twórca	Diamond; Rothman; Nutrition Literacy Research	Kennedy, Ballard, Dop; FAO
Typ	Validated questionnaire; knowledge and comprehension	Household 24-hour recall
Źródło pierwotne	Diamond, M. R. (2007). Development of a reliable and valid nutrition literacy assessment instrument. Journal of Nutrition Education and Behavior, 39(Suppl 5), S26–S30.	Kennedy, G., Ballard, T., & Dop, M. C. (2011). Guidelines for measuring household and individual dietary diversity. Food and Agriculture Organization of the United Nations.
Inne nazwy	NLAI, Nutrition Literacy Assessment, Nutrition Literacy	HDDS, Dietary Diversity Score
Pokrewne	3	3
Podsumowanie	The NLAI is a 26-item validated instrument measuring nutrition literacy—the ability to understand nutrition information and use it to make healthy food choices. Developed by Diamond and refined through validation studies by Rothman and colleagues, the NLAI evaluates comprehension of nutrition labels, understanding of portion sizes, knowledge of daily values, and ability to interpret nutrient claims. Nutrition literacy is a critical determinant of dietary quality and health outcomes, particularly in populations with low general literacy or limited numeracy.	The HDDS is a simple, 12-item food group checklist that captures the diversity of the household diet in the preceding 24 hours. Developed by the FAO in 2011 as a proxy indicator of dietary quality and nutrient adequacy, the HDDS enables rapid assessment of the nutritional vulnerability of households in resource-limited settings. A household with access to foods from many groups is more likely to consume adequate calories, protein, and micronutrients.