I did an ultrasound of my abdomen and they found a "non specific echogenic lesion" on the prostate. Could this be prostate cancer or could it be other things as well? I do believe I have prostatitis.
An ultrasound of the abdomen does not include the prostate, so I am not sure what you mean. You should discuss with your urologist, who may decide to order additional labs (e.g., PSA) and/or imaging tests (e.g., MRI prostate).
A report from Missouri Medicine argues that, despite earlier media coverage, increased omega-3 fatty acid intake does not increase prostate cancer risk.