Saturday, October 16, 2010

Vitamin D and calcium 'reduce risk of breast cancer'



Consuming more vitamin D and calcium could help cut the risk of developing breast cancer, according to new research.

A study by 10,578 premenopausal and 20,909 postmenopausal women over the course of ten years found that higher intakes of calcium and vitamin D were moderately associated with a lower risk of breast cancer among the women who had not yet reached menopause.

The researchers at Brigham and Women's Hospital and Harvard Medical School write: "A possible explanation for the evident difference by menopause status may be related to the joint relationship among calcium, vitamin D and insulinlike growth factors."

Both calcium and vitamin D have been discovered to help stop the multiplication of breast cells which contain insulinlike growth factors. However, these growth factors decline with age, which may help explain the different results, the scientists say.

The strongest risk factor for breast cancer after gender is age; the older a woman is, the more likely she is to suffer from the illness, according to Cancer Research UK.

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