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  • Brader, Lea (author)

Effects of a healthy Nordic diet on plasma 25-hydroxyvitamin D concentration in subjects with metabolic syndrome: a randomized, placebo-controlled trial (SYSDIET)

  • Article/chapterEnglish2014

Publisher, publication year, extent ...

  • 2014-02-26
  • Springer Science and Business Media LLC,2014

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:2d079190-3229-4202-b4da-07c241b4f06d
  • https://lup.lub.lu.se/record/4552435URI
  • https://doi.org/10.1007/s00394-014-0674-3DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-228007URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • At northern latitudes, vitamin D is not synthesized endogenously during winter, causing low plasma 25-hydroxyvitamin D (25(OH)D) concentrations. Therefore, we evaluated the effects of a healthy Nordic diet based on Nordic nutrition recommendations (NNR) on plasma 25(OH)D and explored its dietary predictors. In a Nordic multi-centre trial, subjects (n = 213) with metabolic syndrome were randomized to a control or a healthy Nordic diet favouring fish (a parts per thousand yen300 g/week, including a parts per thousand yen200 g/week fatty fish), whole-grain products, berries, fruits, vegetables, rapeseed oil and low-fat dairy products. Plasma 25(OH)D and parathyroid hormone were analysed before and after 18- to 24-week intervention. At baseline, 45 % had vitamin D inadequacy (< 50 nmol/l), whereas 8 % had deficiency (< 25 nmol/l). Dietary vitamin D intake was increased by the healthy Nordic diet (P < 0.001). The healthy Nordic and the control diet reduced the prevalence of vitamin D inadequacy by 42 % (P < 0.001) and 19 % (P = 0.002), respectively, without between-group difference (P = 0.142). Compared with control, plasma 25(OH)D (P = 0.208) and parathyroid hormone (P = 0.207) were not altered by the healthy Nordic diet. Predictors for 25(OH)D were intake of vitamin D, eicosapentaenoic acids (EPA), docosahexaenoic acids (DHA), vitamin D supplement, plasma EPA and plasma DHA. Nevertheless, only vitamin D intake and season predicted the 25(OH)D changes. Consuming a healthy Nordic diet based on NNR increased vitamin D intake but not plasma 25(OH)D concentration. The reason why fish consumption did not improve vitamin D status might be that many fish are farmed and might contain little vitamin D or that frying fish may result in vitamin D extraction. Additional ways to improve vitamin D status in Nordic countries may be needed.

Subject headings and genre

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  • Rejnmark, Lars (author)
  • Carlberg, Carsten (author)
  • Schwab, Ursula (author)
  • Kolehmainen, Marjukka (author)
  • Rosqvist, FredrikUppsala universitet,Klinisk nutrition och metabolism(Swepub:uu)frero353 (author)
  • Cloetens, LieselotteLund University,Lunds universitet,Tillämpad biokemi,Centrum för tillämpade biovetenskaper,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Pure and Applied Biochemistry,Center for Applied Life Sciences,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)tbio-lce (author)
  • Landin-Olsson, MonaLund University,Lunds universitet,Medicin, Lund,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Medicine, Lund,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine(Swepub:lu)med-mla (author)
  • Gunnarsdottir, Ingibjorg (author)
  • Poutanen, Kaisa S. (author)
  • Herzig, Karl-Heinz (author)
  • Riserus, UlfUppsala universitet,Klinisk nutrition och metabolism(Swepub:uu)ulfriser (author)
  • Savolainen, Markku J. (author)
  • Thorsdottir, Inga (author)
  • Uusitupa, Matti (author)
  • Hermansen, Kjeld (author)
  • Uppsala universitetKlinisk nutrition och metabolism (creator_code:org_t)

Related titles

  • In:European Journal of Nutrition: Springer Science and Business Media LLC53:4, s. 1123-11341436-62151436-6207

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