Relationship between nutrition knowledge and nutritional adequacy in Japanese university students: a cross-sectional study

The aim of this study was to examine the relationship between nutrition knowledge and nutritional adequacy among Japanese university students. This cross-sectional study was conducted in 2018 at a university located in Hyogo Prefecture, Kobe, Japan, and 801 students from various academic disciplines...

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Main Authors: Yatsuki Yanagihara, Aiko Narumi-Hyakutake
Format: Article
Language:English
Published: Cambridge University Press 2025-01-01
Series:Journal of Nutritional Science
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Online Access:https://www.cambridge.org/core/product/identifier/S2048679025000059/type/journal_article
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author Yatsuki Yanagihara
Aiko Narumi-Hyakutake
author_facet Yatsuki Yanagihara
Aiko Narumi-Hyakutake
author_sort Yatsuki Yanagihara
collection DOAJ
description The aim of this study was to examine the relationship between nutrition knowledge and nutritional adequacy among Japanese university students. This cross-sectional study was conducted in 2018 at a university located in Hyogo Prefecture, Kobe, Japan, and 801 students from various academic disciplines were enrolled. Eligible participants were students aged more than 18 years, encompassing all years of study. Nutrition knowledge data were obtained using a nutrition knowledge questionnaire (NKQ) for Japanese adults. Participants were classified into three nutrition knowledge groups according to their total NKQ scores [mean ± standard deviation; all (64.7 ± 15.4%), low (48.1 ± 13.8%), medium (68.3 ± 2.8%), and high (78.5 ± 4.2%)]. Participants reported their dietary habits in the preceding month using a brief self-administered diet history questionnaire. Differences in nutritional adequacy among groups were determined using logistic regression and covariance analyses, adjusted for potential confounding factors. The adequacy of each nutrient was quantified as the proportion of participants with nutrient intake that fell outside the reference range. Although the intakes of only a few nutrients and foods were associated with nutrition knowledge, the total number of nutrients below the estimated average requirement was lower in the high nutrition knowledge group (3.1 ± 2.7) than in the low nutrition knowledge group (3.6 ± 2.9) (P = 0.046). In conclusion, the nutrition knowledge level of Japanese university students is associated with nutritional adequacy but may partially affect eating habits. Future longitudinal studies must clarify the causal and dose-response relationships between nutrition knowledge and dietary habits.
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spelling doaj-art-92c6b8601ec244f8b36029ea49e2c2062025-02-05T08:07:37ZengCambridge University PressJournal of Nutritional Science2048-67902025-01-011410.1017/jns.2025.5Relationship between nutrition knowledge and nutritional adequacy in Japanese university students: a cross-sectional studyYatsuki Yanagihara0Aiko Narumi-Hyakutake1College of Gastronomy Management, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu 525-8577, JapanFaculty of Nutrition, Kobe Gakuin University, 518 Ikawadanicho-Arise, Nishi, Kobe 651-2180, JapanThe aim of this study was to examine the relationship between nutrition knowledge and nutritional adequacy among Japanese university students. This cross-sectional study was conducted in 2018 at a university located in Hyogo Prefecture, Kobe, Japan, and 801 students from various academic disciplines were enrolled. Eligible participants were students aged more than 18 years, encompassing all years of study. Nutrition knowledge data were obtained using a nutrition knowledge questionnaire (NKQ) for Japanese adults. Participants were classified into three nutrition knowledge groups according to their total NKQ scores [mean ± standard deviation; all (64.7 ± 15.4%), low (48.1 ± 13.8%), medium (68.3 ± 2.8%), and high (78.5 ± 4.2%)]. Participants reported their dietary habits in the preceding month using a brief self-administered diet history questionnaire. Differences in nutritional adequacy among groups were determined using logistic regression and covariance analyses, adjusted for potential confounding factors. The adequacy of each nutrient was quantified as the proportion of participants with nutrient intake that fell outside the reference range. Although the intakes of only a few nutrients and foods were associated with nutrition knowledge, the total number of nutrients below the estimated average requirement was lower in the high nutrition knowledge group (3.1 ± 2.7) than in the low nutrition knowledge group (3.6 ± 2.9) (P = 0.046). In conclusion, the nutrition knowledge level of Japanese university students is associated with nutritional adequacy but may partially affect eating habits. Future longitudinal studies must clarify the causal and dose-response relationships between nutrition knowledge and dietary habits.https://www.cambridge.org/core/product/identifier/S2048679025000059/type/journal_articlediet qualitydietary habitsJapanese adultsnutrition knowledgenutritional adequacy
spellingShingle Yatsuki Yanagihara
Aiko Narumi-Hyakutake
Relationship between nutrition knowledge and nutritional adequacy in Japanese university students: a cross-sectional study
Journal of Nutritional Science
diet quality
dietary habits
Japanese adults
nutrition knowledge
nutritional adequacy
title Relationship between nutrition knowledge and nutritional adequacy in Japanese university students: a cross-sectional study
title_full Relationship between nutrition knowledge and nutritional adequacy in Japanese university students: a cross-sectional study
title_fullStr Relationship between nutrition knowledge and nutritional adequacy in Japanese university students: a cross-sectional study
title_full_unstemmed Relationship between nutrition knowledge and nutritional adequacy in Japanese university students: a cross-sectional study
title_short Relationship between nutrition knowledge and nutritional adequacy in Japanese university students: a cross-sectional study
title_sort relationship between nutrition knowledge and nutritional adequacy in japanese university students a cross sectional study
topic diet quality
dietary habits
Japanese adults
nutrition knowledge
nutritional adequacy
url https://www.cambridge.org/core/product/identifier/S2048679025000059/type/journal_article
work_keys_str_mv AT yatsukiyanagihara relationshipbetweennutritionknowledgeandnutritionaladequacyinjapaneseuniversitystudentsacrosssectionalstudy
AT aikonarumihyakutake relationshipbetweennutritionknowledgeandnutritionaladequacyinjapaneseuniversitystudentsacrosssectionalstudy