There have been many studies that have shown that omega-3 fatty acids, like those found in fish oil, are beneficial to the heart. But according to a study, it may not be the same for men’s prostrates.

There is a two-and-a-half times the risk of developing aggressive, high-grade prostate cancer in men who have the highest percentage of docosahexaenoic acid – an inflammation-lowering omega-3 fatty acid that is commonly found in fish –compared to men who have the lowest

DHA levels, Researchers at the Fred Hutchinson Cancer Research Center in Seattle said.

Men who have a large amount of trans-fatty acids had a 50% less probability of high-grade prostate cancer. Trans-fatty acids are involved with heart disease.

None of the fats were linked with low-grade prostate cancer risk.

Lead researcher, Theodore M. Brasky said in a statement that he and his colleagues “were stunned” by their findings” and that they “spent a lot of time making sure the analyses were correct.”

“Our findings turn on what we know about diet, inflammation and the development of prostate cancer on its head and shine a light on the complexity of studying the association between nutrition and the risk of various chronic diseases”.