Dietary intake of vitamin D in a northern Canadian Dené First Nation community.
Int J Circumpolar Health
; 722013.
Article
en En
| MEDLINE
| ID: mdl-23984265
ABSTRACT
BACKGROUND:
Increased awareness of the wide spectrum of activity of vitamin D has focused interest on its role in the health of Canada's Aboriginal peoples, who bear a high burden of both infectious and chronic disease. Cutaneous vitamin D synthesis is limited at northern latitudes, and the transition from nutrient-dense traditional to nutrient-poor market foods has left many Canadian Aboriginal populations food insecure and nutritionally vulnerable.OBJECTIVE:
The study was undertaken to determine the level of dietary vitamin D in a northern Canadian Aboriginal (Dené) community and to determine the primary food sources of vitamin D.DESIGN:
Cross-sectional study.METHODS:
Dietary vitamin D intakes of 46 adult Dené men and women were assessed using a food frequency questionnaire and compared across age, gender, season and body mass index. The adequacy of dietary vitamin D intake was assessed using the 2007 Adequate Intake (AI) and the 2011 Recommended Dietary Allowance (RDA) values for Dietary Reference Intake (DRI).RESULTS:
Mean daily vitamin D intake was 271.4 IU in winter and 298.3 IU in summer. Forty percent and 47.8% of participants met the vitamin D 1997 AI values in winter and summer, respectively; this dropped to 11.1 and 13.0% in winter and summer using 2011 RDA values. Supplements, milk, and local fish were positively associated with adequate vitamin D intake. Milk and local fish were the major dietary sources of vitamin D.CONCLUSIONS:
Dietary intake of vitamin D in the study population was low. Only 2 food sources, fluid milk and fish, provided the majority of dietary vitamin D. Addressing low vitamin D intake in this population requires action aimed at food insecurity present in northern Aboriginal populations.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Vitamina D
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Indígenas Norteamericanos
/
Dieta
Tipo de estudio:
Observational_studies
/
Risk_factors_studies
Límite:
Adult
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Aged
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Aged80
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Female
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Humans
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Male
/
Middle aged
País/Región como asunto:
America do norte
Idioma:
En
Revista:
Int J Circumpolar Health
Asunto de la revista:
MEDICINA
Año:
2013
Tipo del documento:
Article
País de afiliación:
Canadá