Breastfeeding can reduce breast cancer recurrence

A history of breastfeeding reduced the chances of cancer returning after treatment by 30% and the risk of mortality by 28%.

In a study of 1636 women with breast cancer, they found the protective effect was most pronounced in those diagnosed with luminal A tumours.

Women who breastfeed are more likely to get the luminal A subtype of breast cancer, which is less aggressive, and breastfeeding may set up a molecular environment that makes the tumour more responsive to anti-oestrogen therapy,” author Dr Marilyn Kwan said.

JNCI 2015; in press