Fish oils may raise prostate cancer risks, study confirms
The same team published a study in 2011 that showed men with the highest levels of one omega-3 fatty acid called docosahexaenoic acid, DHA for short, had double the risk of high-grade prostate cancer. Other studies have had similar findings.
This is very discouraging. I take fish oil pills regularly.
I love how "studies" are always saying "Such and such vitamin/supplement is good for you" and then a few years later, there's a "study" that same vitamin/supplement is bad. They can never make up their damn minds.
This is why I just take a regular multivitamin and nothing else.
Before I get worked up about this, I need to know which brands of fish oil they studied, along with other pertinent information.
[quote]"We've shown once again that use of nutritional supplements may be harmful," said Alan Kristal of Fred Hutchinson, who also worked on the study.
I wonder where Alan Kristal gets his funding.
[quote]The difference between the group with the highest levels of omega-3s in their blood and those with the lowest works out to about what someone would get by eating salmon twice a week, the researchers said.
So it's not all about fish oil capsules. Medical experts keep telling us to increase the amounts of fish in our diet, especially fatty fish like salmon.
Again, I need to know a whole lot more about sources and amounts. This article could be very misleading.
Human nutrition studies maintain almost a higher proportion of bunk than sociological ones.
I'm vegetarian, and my doc recommended flax oil, which has a similar positive effect on blood lipids without the risky DHA component.
I remember a study a number of years ago that determined table salt had no deleterious effects on human beings.
When someone dug deeper, the study was funded by Morton Salt.
I take fish oil because without it I have joint pain.
If I'm at greater risk of cancer fine. But maybe I'll be at greater risk for cancer because I'm at less risk for heart attack and live longer.
My opthamologist wants me to take fish oil pills daily because I have a case of slight dry eye. I'm not really aware of it, but after my last thorough eye exam, that was her diagnosis.
On the other hand, I'd prefer not to cause undue damage to my prostate.
r3 [quote]I wonder where Alan Kristal gets his funding.
Probably the flaxseed oil industry.
I'd like to see a critical analysis of the study before I put too much faith in it. And, I certainly don't expect that from NBC News. They dutifully report whatever is in a press release with little to no critical research into what the paper stated. [I would expect more in-depth reporting from The New York Times Health Section than NBC.] As R1 notes, this is why news organizations -- especially television news -- are constantly highlighting studies that report seemingly contradictory findings.
For example, there was a study a few years ago that stated that "Vitamin E may not be beneficial, and in fact may be harmful to your health." Upon closer inspection, the study applied only to plain alpha tocopherol Vitamin E and not to Vitamin E that contains "mixed tocopherols." An important and fairly critical distinction.
And, as R2, R3, and R6 observe, we need to know more about who or what group is funding the study. That is often very telling information as to whether the conclusions were predetermined from the outset.
Fish oil made me feel queasy. Stopped taking it. Just listen to what your body tells you. Everyone's different.
Maybe cancer causes higher levels of the chemical in the blood, rather than is caused BY higher levels of chemical in the blood. They did not show causation, just correlation.
That's what I'm afraid of, R9. A lot of these guys have shady funding sources and they skew results to benefit those who fund them.
What this really means is that it's not good to use fish oil as lube.
The truth about all nutritional supplements is that it is better to get it naturally through your diet. Want the benefits of fish oil? Eat more fish!
A supplement will never be exactly the same as the actual natural source taken in with a healthy and varied diet.
Oh fer chrissakes, how many fish do you know that have prostate cancer, huh?
Read the article at the link more carefully, R16. They're saying the detrimental effects of fish oil are equivalent to eating salmon twice a week.
[quote]Want the benefits of fish oil? Eat more fish!
R16. True, but if you eat more fish--or too much fish (whatever 'too much' might be), then you run the risk of having too much mercury in your system, which is not healthy. So yes, eat fish regularly--but the fish oil pill supplements helped to get the 'benefits' of fish while not ingesting too much mercuty.
It's a dilemma.
Big Flax propaganda.
People in Scandinavia take a spoonful of cod liver oil every morning as a part of their breakfast and oily fish are the staple of their diet. They also have the highest life expectancy rates in Western Europe. You do the math.
I've taken fish oil caps for a few years, but only at one-quarter the recommended rate. I figured if they were bad for us, I'd buy myself a little bit of time.I also take flaxseed oil caps, I guess they'll be next?
Centrum is running TV spots saying their product was asked to be part of a major study. In small print at the end we learn Centrum wasn't included in the results of the study.
So should I throw away my fish oil capsules?
I have about 100 left?
Don't throw away your fish oil. Look for the report to be debunked.
To prevent queasiness from Fish Oil and Vitamin E, keep them in the refrigerator and always take with food.
Any study will get the results for the group who pays for it. Anti-vitamin studies are all funded by drug companies. They create scientific sounding names for the group doing the study to make it sound legit.
You can keep fish oil capsules in the freezer to help cut unwanted side effects.
I read this as a tip on the web in articles about fish oil.
Today Ronald Hoffman, MD, a nutritionist for 30 years discussed this study on his radio program. He said supposed health reporters have created fear where it's not warranted by regurgitating press releases without any personal investigation.
What about Flax Seed Oil? I take that. Does it have DHA?
r30 I wanna' know too. I stopped fish oil capsules til this thing gets settled.
There was a recent study that showed Flax Seed Oil caused bitch tits in males, or something like that.
To those who take fish oil supplements. Do they actually help with joint pain?
Aaron Katz, head of Urology at Winthrop University Medical Center says this was a retrospective Fish Oil study and should be ignored.
Yes, R33. I started taking fish oil before it was known to alleviate joint pain. My doctor and I were pleasantly surprised when it had that effect.