Coffee cuts breast cancer risk? Not so fast
Ever
What role coffee drinking might play in a woman’s risk of breast cancer has long puzzled researchers. Some chemicals in coffee might promote cancer cell growth, while otherssuch as antioxidantsmay help prevent it. Studies looking at coffee drinkers have shown conflicting results, finding either a higher or lower risk of breast cancer, or no difference in risk at all.
One explanation for these inconsistent findings might be that coffee affects the risk of only certain types of breast cancer. This was the basic premise explored in the new study.
The researchers looked at two main subtypes of breast cancer: those that respond to the hormone estrogen (estrogen receptor-positive cancers) and those that don’t (estrogen receptor-negative cancers).