As Jacki pointed out here, it appears that vitamin D consumption can lead to a lowered risk of breast cancer development, as a new study has found that vitamin D does indeed help lower the risk of cancer (beyond just breast cancer).What intrigued me about this research is that vitamin D supplements are not being discussed as part of a prevention program. I've always been of the mind that high levels of isolated nutrients may not be good for the human body at all (or be completely ineffective), and the attention to not using vitamin D supplements in the wake of this news confirm this line of thinking.
In general, the working together of several vitamins and minerals at the same time in the body generally gives the best and more preventative results. In the case of vitamin D, a little walk in the sun each day can help your body form its own -- and it's free.
