First of all, fish oil supplements contain omega-3 polyunsaturated fatty acids. Omega-3 polyunsaturated fatty acids benefit the body by reducing the body’s production of triglycerides. Triglycerides are a type of fat in your blood, and if the levels are too high, your chances of experiencing a heart attack can increase. Now let’s look at the study; it was conducted at the Fred Hutchinson Cancer Research Center in Seattle, WA, and researchers claim that there is a link between increased blood levels of omega-3 fatty acids and prostate cancer cases. However, the research also indicates that higher levels of omega-6 fatty acids, which the majority of Americans consume too much of, was surprisingly associated with a lower risk of developing prostate cancer.