The researchers sought to understand the well-documented disparities between whites and blacks in cardiovascular deaths. They turned to vitamin D because of evidence the relationship ever lower serum levels of D for many serious diseases, including kidney and heart disease.A review article published in September 2009 in the Journal of Medicine found that vitamin D deficiency is a global health problem. United States, vitamin D deficiency has been reported in about 36 % of healthy young adults and about 57 % of patients hospitalized in general medicine.
People get vitamin D in their diet, sun exposure, and oral supplements. Genetic factors common to black, sometimes prevent the absorption of vitamin D, such as increased incidence, can eliminate the foods milk enriched with vitamin D, and darker skin pigment, which significantly reduces the production of vitamin D.
Most body tissues and cells have receptors for vitamin D, making it a powerful regulator of cellular activity and growth. Deficiency contributes to the inflammation associated with heart disease, bone health, and many poor.
?Therefore, our study suggests that the next step would be to take action to increase levels of vitamin D safely, with supplements,? said Fiscella, a national expert on disparities in health care and teacher of family and Community Medicine and Preventive Medicine at URMC.
deficiency may contribute to a greater number of strokes and heart-related deaths among African-Americans than whites, according to the University of Rochester Medical Center.
Others at risk are obese and the elderly , because vitamin D levels decline with age. And even if the most sun exposure may increase the levels of D, is also a growing risk for many people. As a result, medical authorities generally recommend a higher dose and / or supplements as the best way to correct a deficiency.
Annals of Family Medicine study published in the January-February edition, which goes online Jan. 11, 2010.
Vitamin D is metabolized in the liver and converted to 25-hydroxyvitamin D or 25 D, the form used to determine the status of a person with a blood test. The deficit is generally defined by levels below 20 nanograms per milliliter, 30 ng / ml is considered sufficient. The average blood level in the study sample was 29.
However, Adesman noted that 972 children, about three-quarters of those who failed the screening room waiting, or have not been forwarded for further evaluation or not followed by further testing.
The author Kevin Fiscella, MD, said a series of complex genetic and lifestyle factors among blacks may explain why this population has a deficiency of vitamin D throughout life compared to other breeds.
Source: http://www.exercise24.org/?p=488
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