[aruanan]

The reaction of the media to the study revealed in a stark way their deeply ingrained prejudice against nutritional solutions to cancer.

Strictly speaking, this is not a nutritional solution since adequate levels of vitamin D can be made by the body with enough exposure to sunlight (and in the summer time, it's only about 10 min per day). And it's no wonder that vitamin D could be protective against one type of cancer and not others because there are many different diseases that are all called cancer.

[aimhigh]

this is not a nutritional solution since adequate levels of vitamin D can be made by the body with enough exposure to sunlight

There are many people that don't get 10 minutes of sun per day. In winter they go to and from work in the dark. Supplements are cheap and would be effective.