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Matti Narkia

Demographic Differences and Trends of Vitamin D Insufficiency in the US Population, 198... - 0 views

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    Demographic differences and trends of vitamin D insufficiency in the US population, 1988-2004.
    Ginde AA, Liu MC, Camargo CA Jr.
    Arch Intern Med. 2009 Mar 23;169(6):626-32.
    PMID: 19307527

    Conclusions National data demonstrate a marked decrease in serum 25(OH)D levels from the 1988-1994 to the 2001-2004 NHANES data collections. Racial/ethnic differences have persisted and may have important implications for known health disparities. Current recommendations for vitamin D supplementation are inadequate to address the growing epidemic of vitamin D insufficiency.
Matti Narkia

Differences in vitamin D status between countries in young adults and the elderly - 0 views

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    Differences in vitamin D status between countries in young adults and the elderly.
    McKenna MJ.
    Am J Med. 1992 Jul;93(1):69-77.
    PMID: 1385673

    PURPOSE: To compare vitamin D status between countries in young adults and in the elderly. MATERIALS AND METHODS: Reports on vitamin D status (as assessed by serum 25-hydroxyvitamin D) from 1971 to 1990 were reviewed. Studies were grouped according to geographic regions: North America (including Canada and the United States); Scandinavia (including Denmark, Finland, Norway, and Sweden); and Central and Western Europe (including Belgium, France, Germany, Ireland, The Netherlands, Switzerland, and the United Kingdom). RESULTS: Vitamin D status varies with the season in young adults and in the elderly, and is lower during the winter in Europe than in both North America and Scandinavia. Oral vitamin D intake is lower in Europe than in both North America and Scandinavia. Hypovitaminosis D and related abnormalities in bone chemistry are most common in elderly residents in Europe but are reported in all elderly populations. CONCLUSIONS: The vitamin D status in young adults and the elderly varies widely with the country of residence. Adequate exposure to summer sunlight is the essential means to ample supply, but oral intake augmented by both fortification and supplementation is necessary to maintain baseline stores. All countries should adopt a fortification policy. It seems likely that the elderly would benefit additionally from a daily supplement of 10 micrograms of vitamin D.
Matti Narkia

Geographical differences in vitamin D status, with particular reference to European cou... - 0 views

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    Geographical differences in vitamin D status, with particular reference to European countries
    Lars Ovesen*, Rikke Andersen and Jette Jakobsen
    Institute of Food Safety and Nutrition, The Danish Veterinary and Food Administration, 30A Sydmarken, 2860 S
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