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New Study: Low Vitamin D Levels Dramatically Raise Breast Cancer Risk



 
 
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Old May 26th 08, 03:41 AM posted to misc.health.alternative,alt.support.breast-implant,misc.headlines,misc.kids.health
Jan Drew
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Default New Study: Low Vitamin D Levels Dramatically Raise Breast Cancer Risk


(NaturalNews) For years, researchers have suspected that low levels of
vitamin D in the body might raise the odds a woman will develop breast
cancer, but hard scientific proof has been lacking. Now a new study
conducted by scientists at the German Cancer Research Center (Deutsches
Krebsforschungszentrum, DKFZ), collaborating with researchers of the
University Hospitals in Hamburg-Eppendorf, provides evidence that women with
low blood levels of vitamin D clearly have a substantially increased risk of
breast cancer.

The study, published in the medical journal Carcinogenesis, involved 1,394
breast cancer patients and an equal number of healthy women. All were
post-menopausal. While earlier studies have looked primarily at how much
vitamin D was in women's diets, the German scientists documented the women's
total vitamin D status, measuring both vitamin D intake from food and also
the vitamin D created by the body when exposed to sunlight. To this end, the
scientists took measurements of serum 25-hydroxy vitamin D [25(OH)D], a
vitamin D metabolite that indicates overall vitamin D status.
The results? Women with a very low blood level of 25(OH)D had a considerably
increased breast cancer risk.

The anti-cancer properties of vitamin D might be explained by the fact the
vitamin influences cell growth, cell differentiation and programmed cell
death (apoptosis). The research team, headed by Dr. Jenny Chang, also
pointed out that vitamin D may exert its cancer-preventing effect by
counteracting the growth-spurring effect of estrogens. "Our findings
strongly suggest a protective effect for post-menopausal breast cancer
through a better vitamin D supply," the scientists concluded.

In addition to its impact on cells, vitamin D regulates calcium metabolism
in the human body. Besides upping cancer risk, a lack of vitamin D can
contribute to fatigue, recurring infections, poor stamina and some forms of
asthma. Foods that are high in vitamin D include sea fish (cod liver oil),
eggs and dairy products.

However, as the German researchers emphasized in their paper, the largest
portion of vitamin D is produced by our own body with the aid of sunlight.
Unfortunately, Americans often do not have enough exposure to sunlight for
optimum health, according to physician Dr. James E. Dowd, author of the new
book "The Vitamin Cure" (Wiley). Dr. Dowd says 55 percent of children and 60
percent of all people in the United States lack healthful levels of vitamin
D.

An earlier study published in Cancer Epidemiology Biomarkers Prevention
found that daily consumption of dairy products reduce the risk for
postmenopausal breast cancer. The authors suggested that calcium and vitamin
D in dairy foods may lower the risk for cancer due to both direct effects on
cell proliferation and hormones.

According to the National Cancer institute, 182,360 new cases of breast
cancer in women are expected to be diagnosed in 2008.

http://www.naturalnews.com/z023264.html

 




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