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73 percent of Australians had too little vitamin D – Dec 2011

Probably > 80% of Australians have <30 ng of vitamin D as of 2012.

  • Report (below) in 2000 found that 73% had <30 ng of vitamin D

(Vitamin D deficiency global epidemic has been getting steadily worse since it started about 40 years ago

+CLICK HERE for: 2X more people have less than 30 ng of vitamin D in a decade – Feb 2010 +Even worse for the obese, elderly, women, those further from equator, and those with dark skins.

Short blog post of this web page

Prevalence of vitamin D deficiency and its determinants in Australian adults aged 25 years and older: A national, population-based study.

Clin Endocrinol (Oxf). 2011 Dec 15. doi: 10.1111/j.1365-2265.2011.04320.x.
Daly RM, Gagnon C, Lu ZX, Magliano DJ, Dunstan DW, Sikaris KA, Zimmet PZ, Ebeling PR, Shaw JE.
Centre for Physical Activity and Nutrition Research, School of Exercise and Nutrition Sciences, Deakin University, Melbourne Department of Medicine, NorthWest Academic Centre, University of Melbourne, Western Hospital, Melbourne Centre de recherche du CHUQ, Laval University, Quebec City, Canada Melbourne Pathology, Melbourne Department of Medicine, Monash University, Melbourne Baker IDI Heart and Diabetes Institute, Melbourne, AUSTRALIA.

Objective:? Vitamin D deficiency is recognised as a global public health problem, but the population-based prevalence of deficiency and its determinants in Australian adults is not known. This study evaluated the vitamin D status of Australian adults aged ?25 years, and risk factors associated with vitamin D deficiency in this population.

Design and Patients:? We studied a national sample of 11,247 Australian adults enrolled in the 1999/2000 Australian Diabetes, Obesity and Lifestyle (AusDiab) study drawn from 42 randomly selected districts throughout Australia. Measurements:?
Serum concentrations of 25-hydroxyvitamin D 25(OH)D were measured by immunoassay. Vitamin D deficiency was defined as a concentration <50 nmol/L.
Information on demographic and lifestyle factors were derived from interview-administered questionnaires.

Results:? The mean serum 25(OH)D concentration was 63 nmol/L (95% CI: 59-67 nmol/L).
Only 4% of the population had a level <25 nmol/L, but the prevalence of vitamin D deficiency (<50 nmol/L) was 31% (22% men; 39% women);
73% had levels <75 nmol/L.
The prevalence of vitamin D deficiency

  • increased significantly with age,
  • was greater in women,
  • in those of non-Europid origin,
  • in the obese and
  • those who were physically inactive and
  • with a higher level of education.

Deficiency was also more common

  • during winter and
  • in people residing in southern Australia (latitude >35°S);
  • 42% of women and 27% of men were deficient during summer-autumn,
    which increased to 58% and 35%, respectively, during winter-spring.


Conclusion:? Vitamin D deficiency is common in Australia affecting nearly one-third of adults aged ?25 years.
This indicates that strategies are needed at the population level to the improve vitamin D status of Australians. © 2011 Blackwell Publishing Ltd.

PMID: 22168576
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Highlights cliped from HealthCanal using deficient = 20 ng

  • 26 % of women aged 25-34 years were deficient
  • 57 % of women over 75 years and over were deficient
  • People of non-European origin were 4-5 X more likely to be deficient
  • Those who were obese and physically inactive were about 2X more likely to be deficient
  • Even worse in Winter 58 % winter, vs 42% summer (Women in Southern states)

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See also VitaminDWiki

Image

This decrease was augmented by the Australian Slip-Slop-Slap campaign to keep away from the sun

The campaign did reduce skin cancer, but has increased by at least 100X the medical problems due to lowered vitamin D, including, ironically, melanoma

Less Sun Less D Less Health

CLICK ON chart for more information

Australia Vitamin D IU recommendations last updated in 2006

Now US = 3X Australia, but both are far less than what is needed for health

see for example wikipage: http://www.vitamindwiki.com/tiki-index.php?page_id=2322
Notes
Adequate Intake (AI): established when evidence is insufficient to develop an RDA and is set at a level assumed to ensure nutritional adequacy
It appears no country has a recommendation less than Australia at 200 IU
Australia had been tied with Germany for 200 IU, but Germany increased recommendation to 800 IU in Jan 2012

CLICK HERE for more information or see PDF attached to the bottom of this page

CLICK HERE for VitaminDWiki blog of IU recommendations from around the world - Jan 2012, such as

Vitamin D for most regions of the world include Australia

Image

Rectangle = population-based study: Australia has 32-40 nmol = 13 to 16 ng

References for Australia:

  • 53. Flicker L, Mead K, MacInnis RJ et al. Serum vitamin D and falls in older women in residential care in Australia. Journal of the American Geriatrics Society 2003; 51: 1533-1538.
  • 54. Lucas JA, Bolland MJ, Grey AB et al. Determinants of vitamin D status in older women living in a subtropical climate. Osteoporosis International 2005; 16: 1641-1648.
  • 55. Bolland MJ, Grey AB, Ames RW et al. Determinants of vitamin D status in older men living in a subtropical climate. Osteoporosis International 2006; 17: 1742-1748.
  • 56. van der Mei I, Ponsonby AL, Engelsen O et al. The high prevalence of vitamin D insufficiency across Australian populations is only partly explained by season and latitude. Environmental Health Perspectives 2007; 115: 1132-1139.
  • 58. Vu LH, Whiteman DC, van der Pols JC et al. Serum vitamin d levels in office workers in a subtropical climate. Photochemistry and Photobiology 2011; 87: 714-720.

Attached files

ID Name Comment Uploaded Size Downloads
1013 Australia vitamin D 2011.pdf PDF admin 16 Jan, 2012 19:57 102.87 Kb 824
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