Association between diet quality evaluated using the Meiji nutritional profiling system and serum 25-hydroxyvitamin D levels in Japanese adults and older adults: A cross-sectional study from the NILS-LSA
Background: The serum 25-hydroxyvitamin D (25OHVD) insufficiency is a recognized public health nutrition concern globally. The relationship between dietary factors and serum 25OHVD levels remains unclear in the Japanese population. Objective: This study aimed to evaluate diet quality using the Meiji...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-09-01
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| Series: | Human Nutrition & Metabolism |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666149725000313 |
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| Summary: | Background: The serum 25-hydroxyvitamin D (25OHVD) insufficiency is a recognized public health nutrition concern globally. The relationship between dietary factors and serum 25OHVD levels remains unclear in the Japanese population. Objective: This study aimed to evaluate diet quality using the Meiji Nutritional Profiling System (Meiji NPS) and investigated its cross-sectional association with serum 25OHVD levels in Japanese middle-aged and older adults. Methods: Data were analyzed from 1272 middle-aged adults and 873 older adults participating in the National Institute for Longevity Sciences - Longitudinal Study of Aging in Japan. Participants with complete dietary records and serum 25OHVD measurements were included. Diet quality was assessed using the Meiji NPS, and a dietary index was calculated for each individual. Associations between diet quality and serum 25OHVD levels were examined using general linear model adjusted for various covariates. Results: The median age, dietary index, and prevalence of serum 25OHVD insufficiency (<30 ng/ml) were 53 years, 10.1 points, and 74.2 % in adults, and 73.0 years, 12.0 points, and 60.5 % in older adults, respectively. Higher dietary indices were positively associated with serum 25OHVD levels in both adults (partial regression coefficient 0.11; 95 % confidence interval: 0.04–0.18), and older adults (0.17, 0.07–0.26). Conclusions: This study suggests a positive association between diet quality, as evaluated by the Meiji NPS, and serum 25OHVD levels in middle-aged and older adults. |
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| ISSN: | 2666-1497 |