Nutrition Research and Practice

The Korean Nutrition Society (한국영양학회)
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Dietary Reference Intakes for Koreans with special consideration to older adults

  • Kim, Hyesook (Department of Nutritional Science and Food Management, Graduate Program in System Health Science and Engineering, Ewha Womans University) ;
  • Hwang, Ji-Yun (Major of Foodservice Management and Nutrition, Sangmyung University) ;
  • Kwon, Oran (Department of Nutritional Science and Food Management, Graduate Program in System Health Science and Engineering, Ewha Womans University)
  • Received : 2021.10.26
  • Accepted : 2022.03.28
  • Published : 2022.05.20
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Abstract

BACKGROUND/OBJECTIVES: The Dietary Reference Intakes for Koreans (KDRIs) were revised in 2020. Due to the rapidly aging Korean population, special consideration was given to reclassify the KDRI age group categories of older adults. This article examines the evidence for modifying the current KDRI age group ranges of older adults (65-74 and ≥ 75 yrs). SUBJECTS/METHODS: We first reviewed the domestic and international data on the elderly, following which we received expert opinions on age classification from the KDRI Advisory Committee. Finally, the 6th and 7th (2013-2017) Korea National Health and Nutrition Examination Survey (KNHANES) data were used to analyze the nutritional intake statuses by considering the age of older adults. RESULTS: According to the review results of domestic and international data and the inputs received from the expert advisory committee, the minimum age considered for the elderly was maintained at 65 yrs. However, the KNHANES data was analyzed to review whether there was a need to subdivide the later periods. Examining the differences in nutrient intakes by age group through the interaction effect term of the piecewise linear regression model revealed the interaction effect was maximum in the groups divided by 65 yrs (50-64 and 65-80), as compared to the groups divided by 70 yrs (50-69 and 70-80) and 75 yrs (50-74 and 75-80). The mean adequacy ratio was calculated per 1 yr of age, and a 3-yr (age) moving average analysis was performed to examine the change in the trends of overall nutrient intake. However, it was challenging to secure a scientific basis for subdivision into age groups in older adults from the results obtained. CONCLUSIONS: This study could not find any scientific evidence for modifying the KDRI age groups for older adults.

Keywords

Acknowledgement

This research was supported by the Policy Research Program for Project No. 20180415A13-00, 25193068200, 25203084501 from the Ministry of Health and Welfare in 2018-2020.

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