"At least 10 percent of Americans take fish oil regularly, most believing that the omega-3 fatty acids in the supplements will protect their cardiovascular health."

http://well.blogs.nytimes.com/2015/03/30/fish-oil-claims-not-supported-by-research/?hpw&rref=health&action=click&pgtype=Homepage&module=well-region&region=bottom-well&WT.nav=bottom-well

It's hard to change one's beliefs, most people don't want to be confused by facts.

Last year my doc advised me to not take fish oil pills due to increased risk of an aggressive form of prostate cancer with no quantifiable benefit.

Fish oil linked to prostate cancer (http://www.nlm.nih.gov/medlineplus/podcast/transcript090313.html)