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Matti Narkia

Relation of body fat indexes to vitamin D status and deficiency among obese adolescents... - 0 views

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    Relation of body fat indexes to vitamin D status and deficiency among obese adolescents.
    Lenders CM, Feldman HA, Von Scheven E, Merewood A, Sweeney C, Wilson DM, Lee PD, Abrams SH, Gitelman SE, Wertz MS, Klish WJ, Taylor GA, Chen TC, Holick MF; Elizabeth Glaser Pediatric Research Network Obesity Study Group.
    Am J Clin Nutr. 2009 Sep;90(3):459-67. Epub 2009 Jul 29.
    PMID: 19640956

    RESULTS: The mean (+/-SD) age of the adolescents was 14.9 +/- 1.4 y; 38 (66%) were female, and 8 (14%) were black. The mean (+/-SD) body mass index (in kg/m(2)) was 36 +/- 5, FM was 40.0 +/- 5.5%, and VAT was 12.4 +/- 4.3%. Seventeen of the adolescents were vitamin D deficient, but none had elevated PTH concentrations. Bone mineral content and bone mineral density were within 2 SDs of national standards. In a multivariate analysis, 25(OH)D decreased by 0.46 +/- 0.22 ng/mL per 1% increment in FM (beta +/- SE, P = 0.05), whereas PTH decreased by 0.78 +/- 0.29 pg/mL per 1% increment in VAT (P = 0.01). CONCLUSIONS: To the best of our knowledge, our results show for the first time that obese adolescents with 25(OH)D deficiency, but without elevated PTH concentrations, have a bone mass within the range of national standards (+/-2 SD). The findings provide initial evidence that the distribution of fat may be associated with vitamin D status, but this relation may be dependent on metabolic factors
Matti Narkia

Effects of calcium, dairy product, and vitamin D supplementation on bone mass accrual a... - 0 views

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    Effects of calcium, dairy product, and vitamin D supplementation on bone mass accrual and body composition in 10-12-y-old girls: a 2-y randomized trial.
    Cheng S, Lyytikäinen A, Kröger H, Lamberg-Allardt C, Alén M, Koistinen A, Wang QJ, Suuriniemi M, Suominen H, Mahonen A, Nicholson PH, Ivaska KK, Korpela R, Ohlsson C, Väänänen KH, Tylavsky F.
    Am J Clin Nutr. 2005 Nov;82(5):1115-26; quiz 1147-8.
    PMID: 16280447
Matti Narkia

Not enough vitamin D in the diet could mean too much fat on adolescents - 0 views

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    AUGUSTA, Ga. - Too little vitamin D could be bad for more than your bones; it may also lead to fatter adolescents, researchers say.\n\nA Medical College of Georgia study of more than 650 teens age 14-19 has found that those who reported higher vitamin D intakes had lower overall body fat and lower amounts of the fat in the abdomen, a type of fat known as visceral fat, which has been associated with health risks such as heart disease, stroke, diabetes and hypertension
Matti Narkia

Vitamin D status and its relationship to body fat, final height, and peak bone mass in ... - 0 views

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    Vitamin D status and its relationship to body fat, final height, and peak bone mass in young women.\nKremer R, Campbell PP, Reinhardt T, Gilsanz V.\nJ Clin Endocrinol Metab. 2009 Jan;94(1):67-73. Epub 2008 Nov 4.\nPMID: 18984659
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