Scientists at the Fred Hutchinson Cancer Research Center found eating deep-fried foods more than once per week boosts a man's chance of developing the disease, and there is some evidence the fried foods are also tied to more aggressive forms of prostate cancer.
French fries, fried chicken, fried fish, and donuts all showed a relation to an increased risk in the study. There was no such association for snack chips.
The researchers did not conclude whether the elevated risk is a result of high-heat cooking methods or was in someway related to the increased fat content. A number of cancer-causing agents are formed during the cooking process, which scientists believe could be the underlying problem, according to the study's abstract published in The Prostate.
The study was partially funded by the U.S. National Cancer Institute—part of the federal NIH—and the Fred Hutchinson Cancer Research Center.