Implications of the nutrition transition for vitamin D intake and status in Aboriginal groups in the Canadian Arctic

Fares, Jessy El Hayek; Weiler, Hope A.

doi:10.1093/nutrit/nuw020

Cited by 14 publications

(10 citation statements)

References 99 publications

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“…Multivariable logistic regression models in males and females to assess ethnic differences in the prevalence of serum 25 Table 4). However, after adjustment for additional variables (age group, month of blood draw, sunbathing holiday in the past month, use of supplements other than cod-liver oil and vitamin D intake), the association was no longer significant (model 2 in Table 4).…”

Section: Public Health Nutritionmentioning

confidence: 99%

“…Cod (Gadus mothua L.) liver is consumed during the winter months (January-March/ April) and saithe (Pollachius virens) liver is consumed from late summer until autumn (July-September/October). Reduction of consumption of traditional foods has been shown to be associated with insufficient nutrient intakes and a decrease in circulating 25(OH)D concentration among certain Indigenous populations in the Arctic (25,26) .…”

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confidence: 99%

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Vitamin D status in a multi-ethnic population of northern Norway: the SAMINOR 2 Clinical Survey

Petrenya

Lamberg‐Allardt

Melhus

et al. 2019

Public Health Nutr.

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ObjectiveTo investigate serum 25-hydroxyvitamin D (S-25(OH)D) concentration in a multi-ethnic population of northern Norway and determine predictors of S-25(OH)D, including Sami ethnicity.DesignCross-sectional data from the second survey of the Population-based Study on Health and Living Conditions in Regions with Sami and Norwegian Populations (the SAMINOR 2 Clinical Survey, 2012–2014). S-25(OH)D was measured by the IDS-iSYS 25-Hydroxy Vitamin Dˢ assay. Daily dietary intake was assessed using an FFQ. BMI was calculated using weight and height measurements.SettingTen municipalities of northern Norway (latitude 68°–70°N).ParticipantsMales (n 2041) and females (n 2424) aged 40–69 years.ResultsMean S-25(OH)D in the study sample was 64·0 nmol/l and median vitamin D intake was 10·3 µg/d. The prevalence of S-25(OH)D<30 nmol/l was 1·9 % and <50 nmol/l was 24·7 %. In sex-specific multivariable linear regression models, older age, blood sample collection in September–October, solarium use, sunbathing holiday, higher alcohol intake (in females), use of cod-liver oil/fish oil supplements, use of vitamin/mineral supplements and higher intakes of vitamin D were significantly associated with higher S-25(OH)D, whereas being a current smoker and obesity were associated with lower S-25(OH)D. These factors explained 21–23 % of the variation in S-25(OH)D.ConclusionsThere were many modifiable risk factors related to S-25(OH)D, however no clear ethnic differences were found. Even in winter, the low prevalence of vitamin D deficiency found among participants with non-Sami, multi-ethnic Sami and Sami self-perceived ethnicity was likely due to adequate vitamin D intake.

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Section: Public Health Nutritionmentioning

confidence: 99%

mentioning

confidence: 99%

Vitamin D status in a multi-ethnic population of northern Norway: the SAMINOR 2 Clinical Survey

Petrenya

Lamberg‐Allardt

Melhus

et al. 2019

Public Health Nutr.

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“…Food insecurity and reduced CF consumption may combine to produce dietary inadequacies and nutrient deficiencies across Inuit communities (53,(107)(108)(109)(110)(111)(112)(113)(114)(115)(116) . Studies reporting on dietary adequacy suggested that consumption of micronutrients (e.g.…”

Section: Possible Impacts Of the Dietary Transition On Health Outcomesmentioning

confidence: 99%

Drivers and health implications of the dietary transition among Inuit in the Canadian Arctic: a scoping review

Little

Hagar

Zivot

et al. 2020

Public Health Nutr.

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Objective: The current study undertook a systematic scoping review on the drivers and implications of dietary changes among Inuit in the Canadian Arctic. Design: A keyword search of peer-reviewed articles was performed using PubMed, Web of Science, CINAHL, Academic Search Premier, Circumpolar Health Bibliographic Database and High North Research Documents. Eligibility criteria included all full-text articles of any design reporting on research on food consumption, nutrient intake, dietary adequacy, dietary change, food security, nutrition-related chronic diseases or traditional food harvesting and consumption among Inuit populations residing in Canada. Articles reporting on in vivo and in vitro experiments or on health impacts of environmental contaminants were excluded. Results: A total of 162 studies were included. Studies indicated declining country food (CF) consumption in favour of market food (MF). Drivers of this transition include colonial processes, poverty and socio-economic factors, changing food preferences and knowledge, and climate change. Health implications of the dietary transition are complex. Micro-nutrient deficiencies and dietary inadequacy are serious concerns and likely exacerbated by increased consumption of non-nutrient dense MF. Food insecurity, overweight, obesity and related cardiometabolic health outcomes are growing public health concerns. Meanwhile, declining CF consumption is entangled with shifting culture and traditional knowledge, with potential implications for psychological, spiritual, social and cultural health and well-being. Conclusions: By exploring and synthesising published literature, this review provides insight into the complex factors influencing Inuit diet and health. Findings may be informative for future research, decision-making and intersectoral actions around risk assessment, food policy and innovative community programmes.

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“…These studies show a predominance of low serum vitamin D levels, that is, insufficiency (<75 nmol/L or 30 ng/ml), or even deficiency (<25 nmol/L or 10 ng/ml) (Andersen et al, 2018; El Hayek Fares & Weiler, 2016; Hagenau et al, 2009; Tse, Weiler, & Kovesi, 2016). Nielsen et al (2014) and El Hayek Fares and Weiler (2016) also observed a decline in serum vitamin D status among Inuit over time, indicating the impacts of replacing the traditional diet (Nielsen et al, 2014). More recently, studies corroborate a high prevalence of vitamin D insufficiency/deficiency in Inuits, highlighting a correlation with dietary habits (Courraud et al, 2020).…”

Section: Native Americans: Skin Color and Vitamin Dmentioning

confidence: 99%

Adaptation and co‐adaptation of skin pigmentation and vitamin D genes in native Americans

Missaggia

Reales

Cybis

et al. 2020

American J of Med Genetics Pt C

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We carried out an exhaustive review regarding human skin color variation and how much it may be related to vitamin D metabolism and other photosensitive molecules. We discuss evolutionary contexts that modulate this variability and hypotheses postulated to explain them; for example, a small amount of melanin in the skin facilitates vitamin D production, making it advantageous to have fair skin in an environment with little radiation incidence. In contrast, more melanin protects folate from degradation in an environment with a high incidence of radiation. Some Native American populations have a skin color at odds with what would be expected for the amount of radiation in the environment in which they live, a finding challenging the so‐called “vitamin D–folate hypothesis.” Since food is also a source of vitamin D, dietary habits should also be considered. Here we argue that a gene network approach provides tools to explain this phenomenon since it indicates potential alleles co‐evolving in a compensatory way. We identified alleles of the vitamin D metabolism and pigmentation pathways segregated together, but in different proportions, in agriculturalists and hunter‐gatherers. Finally, we highlight how an evolutionary approach can be useful to understand current topics of medical interest.

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Implications of the nutrition transition for vitamin D intake and status in Aboriginal groups in the Canadian Arctic

Cited by 14 publications

References 99 publications

Vitamin D status in a multi-ethnic population of northern Norway: the SAMINOR 2 Clinical Survey

Vitamin D status in a multi-ethnic population of northern Norway: the SAMINOR 2 Clinical Survey

Drivers and health implications of the dietary transition among Inuit in the Canadian Arctic: a scoping review

Adaptation and co‐adaptation of skin pigmentation and vitamin D genes in native Americans

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