"So many risk factors for breast cancer are things that you can't change," said Nancy E. Davidson, a breast cancer expert at Johns Hopkins University in Baltimore. "This represents something women could take charge of, something you can change to reduce your risk."
The reason why red meat might increase the risk for breast cancer during premenopause
remains unknown, but previous research has pointed out several possible reasons: substances produced by cooking meat may be carcinogenic, naturally occurring substances in meat may copy the action of hormones, or growth hormones that farmers use to feed cows could fuel breast cancer in women who consume meat from the animals.
Besides that, when the researchers analyzed the data from 1991 to 2003, they found no overall link between red meat consumption and an increased risk of breast cancer. But when they examined the data from only the 512 women who developed the type of breast cancer whose growth is fueled by the hormones estrogen and progesterone, they found an association.
While it may be premature to make formal dietary recommendations based on the findings, it is so well respected that women should take this new analysis into consideration in order to avoid health problems such as a different kind of cancer related with the daily read meat intake.
In this way, Cho agrees that since red meat also contains saturated fat, “it’s prudent for women to reduce their red meat intake for health purposes in general”.
Source: Cho, Eunyoung "Red Meat Intake and Risk of Breast Cancer among Premenopausal Women" (2006)