Prevalence of Vitamin D(3) Deficiency in Orange County Residents.

J Community Health. 2011 Feb 13.

Horani M, Dror A, Holland D, Caporaso F, Sumida KD, Frisch F.

Department of Biological Sciences, Chapman University, Orange, CA, 92866, USA.

With the prevalence of sunlight exposure in Orange County, California, one would expect it to be rare and unusual to find high incidence of Vitamin D deficiencies among its residents. This study evaluated the concentration of Vitamin D3 as part of a larger study to evaluate bone health in Orange County residents. Our preliminary data shows that 19.2% of the 151 subjects evaluated had low Vitamin D3 (<30 pg/ml) and illuminates a growing problem in the United States. We speculate that the widespread sensitivity to skin cancer and sun exposure, the increased use of sun-screens and the filtering of UV waves in automobile glass has put the public at risk for low Vitamin D.

PMID: 21327501

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Opinion: suspect that vitamin D deficiency was due to one or more of the following:

• dark skin

• obese

• elderly

• pregnant

• kidney disease

• Diabetes

• Recent surgery or trauma

• MS

• Colon Cancer list of files

• On a weight loss diet or Avoiding cholesterol

• Indoor lifestyle

• Use sunscreen while outdoors

• Wear a lot of clothes due to religious reasons

• Avoid the sun due to fear of skin cancer

• HIV

• Crohn’s disease

• Alcoholism

• Smoking

• Low on co-factors needed to utilize vitamin D, such as

  • Magnesium

• Boron

• Zinc

See also VitaminDWiki

• Overview of vitamin D deficiency

Which has the following graph

Note: Many groups feel that <30ng = deficient, but some feel that it is < 20 ng Recommendations since 2009

Many researchers attending a conference in 2009 recommended vitamin D levels between 30 to 100 ng