According to researchers, it has been confirmed once again that breastfeeding is associated with lower risk of breast cancer. It has been found that more breastfeeding is better than less breastfeeding in offering protection from breast cancer.

According to a new study at Kaiser Permanente, breastfeeding can decrease a woman's risk of breast cancer recurring. The recent study has found that that breast cancer survivors experience lesser risk of reappearance of the disease if they breast feed one or more of their kids.

About 1,636 breast cancer patients have been involved in the study. According to the researchers, it has been found that breastfeeding gave extra protection from breast cancer tumors of particular genetic subtypes.

"This is the first study we're aware of that examined the role of breastfeeding history in cancer recurrence, and by tumor subtype", said lead study author Marilyn L. Kwan, research scientist with Kaiser Permanente Division of Research.

In the study, participants were asked to fill out questionnaires regarding their health and breastfeeding history. After that the health results plotted and the answers were compared. According to the researchers, it was found that the women who breastfed their kids had more chances to survive an incidence of breast cancer and were less likely to suffer a relapse.

A majority of benefits were accrued by women because the fact that they are most likely to develop Luminal A tumors that involve some of the most common kinds of breast cancer tumors. As per experts, Luminal A tumors are less aggressive and react positively to hormonal therapy. But the researchers are not influenced that breastfeeding is linked with the more treatable Luminal A tumors.

According to study co-author Bette J. Caan, a senior research scientist with the Division of Research, there is possibility that breastfeeding might boost the maturation of ductal cells in the breast and can make them less susceptible to carcinogens.