A prospective study led by researchers from the University
of California, San Diego School of Medicine has found that low serum vitamin D
levels in the months preceding diagnosis may predict a high risk of
premenopausal breast cancer.
The study of blood levels of 1,200 healthy women found that
women whose serum vitamin D level was low during the three-month period just
before diagnosis had approximately three times the risk of breast cancer as
women in the highest vitamin D group.
The study is currently published online in advance of the print edition
of the journal Cancer Causes and Control.