More good news about vitamin D helping to prevent cancer from Science News:
ScienceDaily (Sep. 22, 2010) — Findings from an animal study suggest that obese women can reduce their increased risk of endometrial disease if they take vitamin D supplements, say researchers at the Georgetown Lombardi Comprehensive Cancer Center.
The scientists report in Cancer Prevention Research published online September 21 that 25 percent of obese mice fed a vitamin D supplemented diet developed endometrial cancer, while 67 percent of obese mice not treated with the vitamin developed cancer. They also report that vitamin D offered no protective effects for normal weight mice; whether or not they used the vitamin, about 60 percent of these mice developed cancer.
All of the mice were genetically predisposed to develop endometrial cancer, because they were missing one of their two PTEN tumor suppressor genes, loss of which is strongly linked to development of human endometrial cancer. Obesity is also a strong known risk factor, researchers say.
“Vitamin D has been shown to be helpful in a number of cancers, but for endometrial cancer, our study suggests it protects only against cancer that develops due to obesity,” says the study’s lead investigator, Leena Hilakivi-Clarke, PhD, a Professor of Oncology. “Still, if these results are confirmed in women, use of vitamin D may be a wonderfully simple way to reduce endometrial cancer risk.
“Until further studies are done, I think the best advice for women concerned about their risk is to take vitamin D supplements or spend a few more minutes each week in the sun. This vitamin has shown many health benefits in addition to the promise suggested by our mouse study,” she says.
Best for women, of course, is to attempt to keep a normal weight, because it offers many other health benefits besides endometrial cancer prevention, Hilakivi-Clarke says. “However, since over 50% of women in the US are overweight or obese, and loosing weight is difficult, other means are needed to prevent endometrial cancer in these women. One way is to use progesterone, but it increases breast cancer risk. Vitamin D supplements are likely to be safer than, for example, progesterone.”
Go to: More vitamin D benefits to read the second half of the article.
Feel good and keep smiling! Pat & Pattie