Red meat increases breast cancer risk

Ground beef is displayed for a photograph in the meat department of a supermarket in Princeton, Illinois, U.S., on Thursday, April 26, 2012. The first time mad cow disease appeared in the U.S., beef exports plunged 82 percent. More than eight years later, the discovery of an infected dairy cow in California may do little to prevent shipments from surging to a record for a second straight year. Photographer: Daniel Acker/Bloomberg via Getty Images

Red meat increases breast cancer risk

Harvard researchers say eating red meat in early adulthood increases a woman's risk of breast cancer.

01:19 - Source: CNN

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Ground beef is displayed for a photograph in the meat department of a supermarket in Princeton, Illinois, U.S., on Thursday, April 26, 2012. The first time mad cow disease appeared in the U.S., beef exports plunged 82 percent. More than eight years later, the discovery of an infected dairy cow in California may do little to prevent shipments from surging to a record for a second straight year. Photographer: Daniel Acker/Bloomberg via Getty Images

Red meat increases breast cancer risk

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