[vibrato]

Let me give an alternative view of this epidemiological study.

"Those more interested in their health (motivated to take supplements or eat a high omega-3 diet) more likely to be diagnosed by their doctor with common health issues"

[nraynaud]

Participants were selected by having a cancer. Have you read the article? it's about growth rate.

[pmoriarty]

According to the article, "In this type of study, cases of people who have a particular outcome - in this case, prostate cancer - are matched against a random group of people who do not develop the condition."

That sounds to me that in fact they were looking at cancer-free people as well.

[vibrato]

Right. My point is that less health conscious people would have un-diagnosed cancer. This would make it appear that more health conscious people (higher omega-3) have higher rates of cancer than baseline.