If you really like your friends then transfer this article to them.

See article below the introduction.

I have already sent “tens” of this kind about vitamin D.
No doctor in Israel has the right to refuse patients this examination.
It can be called -in my eyes-absolute malpractice.
Insist on this test if you still have not done it.
We have checked many hundreds of patients already over the last years, possibly more than thousands[?] and the results are hard to believe!

Vitamin D May Cut Cancer Risk, Study Says

About.com Health’s Disease and Condition content is reviewed by our Medical Review BoardBoosting your vitamin D intake with supplements may reduce your risk of breast and other cancers, a new study has found.

The four-year study, published in the American Journal of Clinical Nutrition by Joan Lappe, Ph.D., and colleagues from Creighton University, followed 1,179 women from rural eastern Nebraska with an average age of 67.

The women were divided into three groups: 446 took 1,400 to 1,500 milligrams (mg) of supplementary calcium per day plus 1,100 international units (IU) of vitamin D per day, a similar number took the same amount of supplementary calcium alone, and 288 took placebo pills everyday.

After four years, the cancer risk decreased by 60 percent in those taking both calcium and vitamin D, and by 47 percent in those taking calcium alone.

When the researchers excluded cancers that occurred in the first year of the study (assuming that those cancers likely already existed at the start of the study), those taking calcium and vitamin D had an even greater reduction in cancer risk –- 77 percent compared to the placebo (fake) group.

People taking calcium only had essentially an unchanged reduction of risk, which suggests that calcium alone did little for cancer risk.

This is considered one of the most rigorous studies yet on vitamin D and cancer prevention because researchers increased blood levels of vitamin D in some of the study participants, followed them from start to finish, and then compared them to an identical group who received a dummy pill instead of vitamin D.

Research into the link between vitamin D and cancer prevention dates back decades to observations that cancer rates were lower among people living in southern latitudes compared to similar groups in northern latitudes.

The study had a few drawbacks. It was originally designed to monitor the effect of calcium and vitamin D supplements on bone health, and the number of people with cancer in the study was only 50. Also, the study participants were all women, so we don’t know whether the same effect would occur in men.

How might it work? Vitamin D appears to interfere with the action of a hormone called insulin-like growth factor (IGF). IGF has been f