Study: Fish oils linked to prostate cancer

Study: Fish oils linked to prostate cancer

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ATLANTA -

A new study shows that too much fish oil can increase the risk of deadly prostate cancer.

Millions of people take fish oil supplements to get the benefits of omega-3 fatty acids in preventing heart disease and other conditions.

But the new study in the Journal of the American Cancer Institute found a link between men with high omega-3 levels and increased risk of prostate cancer, including the deadliest form of the cancer.

Dr. Shafiq Khan is among those who emphasize that the study did not establish a cause for the connection to cancer. He heads the Center for Cancer Research and Therapeutic Development at Clark-Atlanta University.

"Somebody has to do some experiments, and we might be doing some too, to see if omega-3 is really causing the cancer," Khan said.

He advises taking a wait-and-see attitude until more evidence becomes available.

"In the part of the world where the prostate cancer is the lowest, they eat a lot of fish like Japanese and Chinese in that part of the world, so I don't think the fish or fish oil is bad for you," Khan said.

The study researchers recommended that men taking increased levels of fish oil talk to their doctors about potentially reducing their intake.

 Dr. Khan says for now, he plans to continue with the omega-3 supplement he takes.

The American Cancer Society estimates that doctors will diagnose close to 250,000 men in the U.S. with prostate cancer this year.

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