Is trans fat bad for the breast as well as the heart?

French researchers compared blood samples taken in the mid-1990s from 363 women who were later diagnosed with breast cancer and 702 similar women who were not. Those who had higher blood levels of trans fat were nearly twice as likely to be diagnosed with breast cancer over the next seven years as those with lower trans levels.

What to do: Avoid trans fat to protect your heart (and maybe your breasts). Skip foods made with partially hydrogenated oils in restaurants and at the supermarket. If you minimize the saturated fat you get from beef and high-fat dairy foods, you'll also dodge their low levels of naturally occurring trans fat.