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Locally harvested foods support serum 25-hydroxyvitamin D sufficiency in an indigenous population of Western Alaska

BACKGROUND: Low serum vitamin D is associated with higher latitude, age, body fat percentage and low intake of fatty fish. Little documentation of vitamin D concentrations is available for Alaska Native populations. OBJECTIVE: This study was undertaken to investigate serum 25-hydroxyvitamin D (25(OH...

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Autores principales: Luick, Bret, Bersamin, Andrea, Stern, Judith S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Co-Action Publishing 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3962552/
https://www.ncbi.nlm.nih.gov/pubmed/24665435
http://dx.doi.org/10.3402/ijch.v73.22732
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author Luick, Bret
Bersamin, Andrea
Stern, Judith S.
author_facet Luick, Bret
Bersamin, Andrea
Stern, Judith S.
author_sort Luick, Bret
collection PubMed
description BACKGROUND: Low serum vitamin D is associated with higher latitude, age, body fat percentage and low intake of fatty fish. Little documentation of vitamin D concentrations is available for Alaska Native populations. OBJECTIVE: This study was undertaken to investigate serum 25-hydroxyvitamin D (25(OH)D) concentrations of the Yup'ik people of southwestern Alaska in relation to demographic and lifestyle variables, particularly with the use of locally harvested (local) foods. DESIGN: Cross-sectional study. METHODS: We estimated 25(OH)D, dietary vitamin D and calcium, percent of energy from local foods and demographic variables in 497 Yup'ik people (43% males) aged 14–92 residing in southwestern Alaska. Sampling was approximately equally divided between synthesizing and non-synthesizing seasons, although the preponderance of samples were drawn during months of increasing daylight. RESULTS: Mean vitamin D intake was 15.1±20.2 µg/d, while local foods accounted for 22.9±17.1% of energy intake. The leading sources of vitamin D were local fish (90.1%) followed by market foods. Mean 25(OH)D concentration was 95.6±40.7 nmol/L. Participants in the upper 50th percentile of 25(OH)D concentration tended to be older, male, of lower body mass index, sampled during the synthesizing season, and among the upper 50th percentile of local food use. CONCLUSIONS: A shift away from locally harvested foods will likely increase the risk for serum 25(OH)D insufficiency in this population.
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spelling pubmed-39625522014-03-24 Locally harvested foods support serum 25-hydroxyvitamin D sufficiency in an indigenous population of Western Alaska Luick, Bret Bersamin, Andrea Stern, Judith S. Int J Circumpolar Health Original Research Article BACKGROUND: Low serum vitamin D is associated with higher latitude, age, body fat percentage and low intake of fatty fish. Little documentation of vitamin D concentrations is available for Alaska Native populations. OBJECTIVE: This study was undertaken to investigate serum 25-hydroxyvitamin D (25(OH)D) concentrations of the Yup'ik people of southwestern Alaska in relation to demographic and lifestyle variables, particularly with the use of locally harvested (local) foods. DESIGN: Cross-sectional study. METHODS: We estimated 25(OH)D, dietary vitamin D and calcium, percent of energy from local foods and demographic variables in 497 Yup'ik people (43% males) aged 14–92 residing in southwestern Alaska. Sampling was approximately equally divided between synthesizing and non-synthesizing seasons, although the preponderance of samples were drawn during months of increasing daylight. RESULTS: Mean vitamin D intake was 15.1±20.2 µg/d, while local foods accounted for 22.9±17.1% of energy intake. The leading sources of vitamin D were local fish (90.1%) followed by market foods. Mean 25(OH)D concentration was 95.6±40.7 nmol/L. Participants in the upper 50th percentile of 25(OH)D concentration tended to be older, male, of lower body mass index, sampled during the synthesizing season, and among the upper 50th percentile of local food use. CONCLUSIONS: A shift away from locally harvested foods will likely increase the risk for serum 25(OH)D insufficiency in this population. Co-Action Publishing 2014-03-20 /pmc/articles/PMC3962552/ /pubmed/24665435 http://dx.doi.org/10.3402/ijch.v73.22732 Text en © 2014 Bret Luick et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research Article
Luick, Bret
Bersamin, Andrea
Stern, Judith S.
Locally harvested foods support serum 25-hydroxyvitamin D sufficiency in an indigenous population of Western Alaska
title Locally harvested foods support serum 25-hydroxyvitamin D sufficiency in an indigenous population of Western Alaska
title_full Locally harvested foods support serum 25-hydroxyvitamin D sufficiency in an indigenous population of Western Alaska
title_fullStr Locally harvested foods support serum 25-hydroxyvitamin D sufficiency in an indigenous population of Western Alaska
title_full_unstemmed Locally harvested foods support serum 25-hydroxyvitamin D sufficiency in an indigenous population of Western Alaska
title_short Locally harvested foods support serum 25-hydroxyvitamin D sufficiency in an indigenous population of Western Alaska
title_sort locally harvested foods support serum 25-hydroxyvitamin d sufficiency in an indigenous population of western alaska
topic Original Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3962552/
https://www.ncbi.nlm.nih.gov/pubmed/24665435
http://dx.doi.org/10.3402/ijch.v73.22732
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