Dietary intake of vitamin D in a northern Canadian Dené First Nation community

Slater, Joyce; Larcombe, Linda; Green, Christopher; Slivinski, Caroline; Singer, Matthew; Denechezhe, Lizette; Whaley, Chris; Nickerson, Peter; Orr, Pamela

doi:10.3402/ijch.v72i0.20723

Cited by 17 publications

(7 citation statements)

References 31 publications

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“…The non-synthesizing season mean 25(OH)D was above the highest NHANES III subgroup ( 42 ). However, this report is consistent with findings for indigenous adults residing in northern circumpolar regions where seasonality and local foods are important mediators of vitamin D intake ( 43 ) and circulating 25(OH)D concentration ( 27 , 44 – 48 ). Pronounced seasonality of serum 25(OH)D has been demonstrated among 47 adult Caucasians residing in Fairbanks, Alaska, latitude 65°N, based on 12 months of longitudinal sampling and was shown to follow measured UV-B exposure, although intake appeared to be a more important factor than sunlight for determining year-round concentrations ( 49 ).…”

Section: Discussionsupporting

confidence: 90%

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

Luick

Bersamin

Stern

2014

International Journal of Circumpolar Health

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BackgroundLow 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.ObjectiveThis 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.DesignCross-sectional study.MethodsWe 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.ResultsMean 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.ConclusionsA shift away from locally harvested foods will likely increase the risk for serum 25(OH)D insufficiency in this population.

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Section: Discussionsupporting

confidence: 90%

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

Luick

Bersamin

Stern

2014

International Journal of Circumpolar Health

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“…Fish, egg yolk, cheese, and mushrooms are the only dietary sources that contain natural vitamin D (12). Among these, fish has, in general, the highest content of vitamin D (12,13) and is the major natural food source in many populations within (14)(15)(16)(17) and outside of (18,19) Europe. Other significant food sources are fortified items such as margarine, skimmed milk, and orange juice (20,21).…”

Section: Introductionmentioning

confidence: 99%

Efficacy of fish intake on vitamin D status: a meta-analysis of randomized controlled trials

Lehmann

Gjessing

Hirche

et al. 2015

The American Journal of Clinical Nutrition

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Results: Seven articles and 2 unpublished study data sets with 640 subjects and 14 study groups met the inclusion criteria and were included in this meta-analysis. Compared with controls, the consumption of fish increased 25(OH)D concentrations, on average, by 4.4 nmol/L (95% CI: 1.7, 7.1 nmol/L; P , 0.0001, I 2 = 25%; 9 studies).The type of the fish also played a key role: the consumption of fatty fish resulted in a mean difference of 6.8 nmol/L (95% CI: 3.7, 9.9 nmol/L; P , 0.0001, I 2 = 0%; 7 study groups), whereas for lean fish the mean difference was 1.9 nmol/L (95% CI: 22.3, 6.0 nmol/L; P , 0.38, I 2 = 37%; 7 study groups). Short-term studies (4-8 wk) showed a mean difference of 3.8 nmol/L (95% CI: 0.6, 6.9 nmol/L; P , 0.02, I 2 = 38%; 10 study groups), whereas in long-term studies (w6 mo) the mean difference was 8.3 nmol/L (95% CI: 2.1, 14.5 nmol/L; P , 0.009, I 2 = 0%; 4 study groups). Conclusion: As the major food source of vitamin D, fish consumption increases concentrations of 25(OH)D, although recommended fish intakes cannot optimize vitamin D status.Am J Clin Nutr 2015;102:837-47.

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“…Reasons for exclusion included the absence of reported obesity rate ( n =36), the use of CCHS or other national data ( n =30) (here are a few noteworthy examples: [28, 48–53]), the sample not being representative of a whole population ( n =67) as in the case of studies whose participants are restricted to a specific age group [42, 43, 54–56], focus on pregnant women [57–62], diabetes screening initiatives [41, 63–66], and the inclusion of nondiabetic persons only [67, 68]. Studies presenting findings that have already been reported in the 17 unique studies retained for this article ( n =64) were also excluded, as well as those using a definition of obesity other than BMI ≥ 30 ( n =7) [69–75] and those for which reviewers were unable to find the full-text article ( n =3) [76–78]. Of the seven studies using a definition of obesity other than BMI ≥ 30, two presented obesity as BMI ≥ 27 [72, 74], another two combined overweight and obesity (BMI ≥ 25) [73, 75], a further two studies solely presented mean BMI [70, 71], and one last study only used abdominal obesity, which was measured using waist circumference.…”

Section: Resultsmentioning

confidence: 99%

“…Studies presenting findings that have already been reported in the 17 unique studies retained for this article ( n =64) were also excluded, as well as those using a definition of obesity other than BMI ≥ 30 ( n =7) [69–75] and those for which reviewers were unable to find the full-text article ( n =3) [76–78]. Of the seven studies using a definition of obesity other than BMI ≥ 30, two presented obesity as BMI ≥ 27 [72, 74], another two combined overweight and obesity (BMI ≥ 25) [73, 75], a further two studies solely presented mean BMI [70, 71], and one last study only used abdominal obesity, which was measured using waist circumference. A further 22 papers were identified in the grey literature search, 19 of which met inclusion criteria.…”

Section: Resultsmentioning

confidence: 99%

A Scoping Review of Obesity among Indigenous Peoples in Canada

Batal

Decelles

2019

Journal of Obesity

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Indigenous populations in Canada are heavily affected by the burden of obesity, and certain communities, such as First Nations on reserve, are not included in the sampling framework of large national health surveys. A scoping review of ever published original research reporting obesity rates (body mass index ≥ 30), among adult Indigenous peoples in Canada, was conducted to identify studies that help close the Canadian Community Health Survey (CCHS) data gap for obesity prevalence in Indigenous populations in Canada and to make comparisons based on ethnicity, sex, time, and geography. First Nations on reserve with self-reported height and weight had higher rates of obesity (30%–51%) than First Nations off reserve (21%–42%) and non-Indigenous populations (12%–31%) in their respective province or territory, with the exception of Alberta, where rates in First Nations on reserve (30% and 36%) were lower or similar to those reported in First Nations off reserve (38%). First Nations on reserve with predominantly measured height and weight (42%–66%) had higher rates of obesity compared to Inuit in Quebec (28%), Nunavut (33%), and Newfoundland and Labrador (41%), while the rates were similar to those in Inuit in Northwest Territories (49%). Obesity in these large studies conducted among Inuit was based solely on measured height and weight. Studies in First Nations and Inuit alike showed higher prevalence of obesity in women, as well as an increase with time. No recent studies measured the obesity rates for First Nations in Yukon and Northwest Territories and for Métis living in settlements of Northern Alberta. Researchers are encouraged to conduct total diet studies in these regions, and to use existing data to analyze the associations between obesity, road access, latitude, food environment, and traditional food intake, to further inform community planning and development.

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Dietary intake of vitamin D in a northern Canadian Dené First Nation community

Cited by 17 publications

References 31 publications

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

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

Efficacy of fish intake on vitamin D status: a meta-analysis of randomized controlled trials

A Scoping Review of Obesity among Indigenous Peoples in Canada

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