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	Household Dietary Diversity Score（世帯の食事多様性スコア）	Healthy Eating Index, 2020年版
分野	公衆栄養学	公衆栄養学
系統	Process / pipeline	Process / pipeline
提唱年	2011	2020
提唱者	Kennedy, Ballard, Dop; FAO	USDA/NCI Dietary Assessment Shared Resource; Krebs-Smith et al.
種類	Household 24-hour recall	Calculated from dietary intake data (24-hour recall or FFQ)
原典	Kennedy, G., Ballard, T., & Dop, M. C. (2011). Guidelines for measuring household and individual dietary diversity. Food and Agriculture Organization of the United Nations.	Guenther, P. M., Casavale, K. O., Reedy, J., & Kirkpatrick, S. I. (2021). Update of the Healthy Eating Index: HEI-2015. Journal of the Academy of Nutrition and Dietetics, 113(4), 569–580.
別名	HDDS, Dietary Diversity Score	HEI-2020, HEI, Healthy Eating Index 2020
関連	3	3
概要	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.	The HEI-2020 is a composite score measuring diet quality based on adherence to the 2020–2025 Dietary Guidelines for Americans. Developed by USDA and the National Cancer Institute, the HEI evaluates 13 dietary components: adequacy of fruit, vegetables, grains, protein foods, dairy; moderation of saturated fat, added sugars, and sodium; and appropriate whole grain and polyunsaturated fat intakes. The HEI-2020 provides a single metric of overall diet quality suitable for population surveillance, research, and individual dietary assessment.