-the study in the article below evaluates the effects of a very short period of fish oil supplementation on irregular heart beat (arrhythmia) after a specific surgical procedure. Obviously, this very specific scenario can't translate into the general value of fish oil
-many of the studies referenced don't differentiate between fish and plant sources of omega-3. It has not been proven that plant sources of omega-3 are in a form our body can utilize.
-fish oil is generally called EFA (Essential Fatty Acids) and then it is further divided into EPA and DHA content. 1000 mg of 'EFA' does not guarantee a therapeutic dose of EPA and/or DHA.
-fish oils don't (always) work rapidly. You shouldn't expect to a shorten a hospital stay by suddenly starting a fish oil supplement when you check in.
-the article references a Cochrane review which actually said 'There is not enough evidence to say that people should stop taking rich sources of omega 3 fats...' AND some of the research they were reviewing was for a margarine spread!
I could go on and on. I guess what it comes down to is that the news these days is filled with sensational stores. There must be some combination of reporters intentionally skewing the facts and/or just not understanding the science. There is no 'wonder supplement' out there, but there are many that are extremely good. I would encourage you to speak to a health care practitioner you trust when the news raises questions for you.
As a final note, we are starting to discover some wonderful non-fish sources of omega-3 essential fatty acids that hold great promise of being in a form our body can properly use.