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Fish Oil Linked to Lower Breast Cancer Risk

Study Shows Fish Oil Supplements May Cut Risk of Invasive Ductal Breast Cancer

Second Opinion continued...

It's buyer beware when it comes to choosing fish oil supplements, he says.

"Some products may be contaminated with heavy metals," he says. "If you are not going to get fish oil from the fish itself, do appropriate homework to make sure you choose a reputable product," he says.

Peiying Yang, PhD, an assistant professor of integrative medicine at M.D. Anderson, recently received a grant to study how fish oil supplements affect lung cancer risk. "Fish oil, in general, is a very good anti-inflammatory agent, and inflammation plays a role in cancer development," she says.

The new findings are "interesting and provocative," says Bette Caan, DrPh, a senior research scientist at the Kaiser Permanente Northern California Division of Research in Oakland. "I would not recommend that people start taking fish oil specifically to prevent breast cancer because the data is just not there yet, but if they are taking it for other reasons, they should continue."

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