British scientists have come forward with more evidence to prove that vitamin D can help to fight breast cancer. Researchers at London's Imperial College have found that women with advanced breast cancer have lower levels of the vitamin when compared with those in the early stages of the disease.

Previous studies have suggested a correlation between vitamin D deficiency and breast cancer. But most of them cited a genetic variance that increases the risk of breast cancer.

Dubbed the vitamin D receptor gene (VDR), the gene doubles the risk of breast cancer among women. It can also lead to a more aggressive form of breast cancer for women diagnosed with the condition.

Vitamin D deficiency has been named among the leading causes of breast cancer. And a majority of people in western societies are deficient in vitamin D. That fact helps explain why there is higher prevalence of breast cancer in developed countries.