Women may have a new reason to watch how much red meat they eat, especially during middle age.
For ten years, researchers from Brigham and Women's Hospital and Harvard Medical School followed over ninety thousand women between the ages of twenty-six and forty-six. They found that the women who ate even a little red meat every day doubled their risk of breast cancer compared to women who limited their red meat to no more than three servings a week.
"This was not for all types of breast cancers, but only for hormone receptor- positive breast cancer, which is the more common kind of breast cancer in the United States,"said Dr. Wendy Chen of Dana-Farber Cancer Institute.
Aside from hormone receptors, the report also shows the type of iron found in red meat may influence or enhance the formation of tumors. Doctors say the report is not definitive and more study is needed, but it does give women more information about the possible risks and control over what and how much they may choose to eat.