Fish oils may raise prostate cancer risks study confirms

Discussion in 'The Bar' started by Doug Masters, Jul 11, 2013.

  1. Doug Masters

    Doug Masters ok VIP

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    I'm gonna die :facepalm:


    http://www.nbcnews.com/health/fish-oils-may-raise-prostate-cancer-risks-study-confirms-6C10597283





    Everyone knows that fish oil is good for you, right? It’s a rich source of omega-3 fatty acids, which are marketed to reduce the risk of just about everything from heart disease to Alzheimer’s.

    But a startling study shows men who have the highest levels of these compounds – the kinds found in fish but not in vegetable sources -- have a higher risk of prostate cancer. Men with the very highest levels had a 71 percent higher risk of high-grade prostate cancer – the kind most likely to spread and kill, they report in the Journal of the National Cancer Institute.

    It might be a sign that popping a pill is not only possibly a waste of money – it might be downright dangerous. And eating fish too often might be, also.

    “These fish oil supplements in which some men getting mega, mega doses…in our opinion that is probably a little bit dangerous,†said Theodore Brasky of Ohio State University Medical Center, who worked on the study with a team from the Fred Hutchinson Cancer Research Center in Seattle.

    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.

    To try to confirm their work, the team looked at data from a different prostate cancer trial called SELECT, for Selenium and Vitamin E Cancer Prevention Trial. That study showed 17 more cases of prostate cancer among men who took vitamin E alone for about five years compared to men taking placebos.

    The effect was even stronger when they looked at omega-3 fatty acids – specifically, the kinds found in fish oil as compared to those found in vegetable oils.

    Brasky’s team looked at 834 of the men in the SELECT trial who developed prostate cancer, and 1,393 randomly chosen others from the trial who didn’t have cancer. They divided the men into four groups based on their blood levels of three omega-3 fatty acids – EPA, DPA and DHA.

    Those with the highest blood levels had a 71 percent higher risk of high-grade prostate cancer, compared to those with the lowest levels. Overall, their risk of any kind of prostate cancer was 44 percent higher.

    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.

    Fatty acids found in vegetable oils, flaxseeds and other vegetable sources – including alpha-linolenic acid (ALA) – did not affect prostate cancer risk, the researchers found.

    “A 70 percent increased risk in high-grade prostate cancer, given it’s the No. 1 cancer in men and fish is a commonly consumed thing and is thought to be a healthy food, I think it’d be a concern for people,†Brasky said in a telephone interview.

    The American Cancer Society projects that 240,000 U.S. men will be diagnosed with prostate cancer in 2013, and about 30,000 will die from it.

    "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.

    Brasky, who says he still eats fish “but in moderationâ€, says the study cannot answer the question of how fish oil might cause cancer. They took into account other factors that might be associated with eating fish and Brasky notes that mercury, which can be found in fatty fish, doesn’t cause prostate cancer.

    The study also doesn’t say anything about the effects of fish oil on men who already have cancer. “This study is not about men with prostate cancer,†Brasky said, noting that some studies have suggested fish oil might be beneficial in men who already have cancer.

    Men might be at a loss for what to do, as omega-3 fatty acids were also believed to lower the risk of heart disease, which is far more common than prostate cancer. The American Heart Association recommends that people with heart disease eat fish twice a week and people with heart disease might need fish oil capsules.

    But the researchers point out that recent studies have shown taking extra omega-3 has little effect on heart disease – including a study published in the New England Journal of Medicine in May.
     
  2. h5htyt76757j

    h5htyt76757j Chyea Chyea Banned User

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    cuz u said fish lulz :jj:

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  3. BrulesRules

    BrulesRules Just grab 'em in the biscuits VIP

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    I never eat fish :woot:
     
  4. Mark Mayonnaise

    Mark Mayonnaise You look like a tree! VIP

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    I only eat fish and chips :woot:
     
  5. Schmoopy

    Schmoopy Shit Mult Hunter Gold

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    Just live your life and ignore these :quote:experts:quote:
     
  6. h5htyt76757j

    h5htyt76757j Chyea Chyea Banned User

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    :no: bk fish


    liar
     
  7. Mark Mayonnaise

    Mark Mayonnaise You look like a tree! VIP

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    Oh same goddamn thing :what:
     
  8. Schmoopy

    Schmoopy Shit Mult Hunter Gold

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    One year they say something's good for you. The next year they find the same thing's bad for you. :words:
     
  9. h5htyt76757j

    h5htyt76757j Chyea Chyea Banned User

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    [​IMG]

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    not the same
     
  10. nazdrowie

    nazdrowie Sultan of Sweat Gold

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    hit the gym baw that'll make everything better
     
  11. Doug Masters

    Doug Masters ok VIP

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    :up:
     
  12. h5htyt76757j

    h5htyt76757j Chyea Chyea Banned User

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    cuz u said gym lol

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    :jj:
     
  13. Schmoopy

    Schmoopy Shit Mult Hunter Gold

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    All of us are gonna die one day and there's nothing you can do about it!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!:tadah::sd:
     
  14. ice cream

    ice cream Well-Known Member VIP

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    hows it feel being forty :rolleyes:
     
  15. nazdrowie

    nazdrowie Sultan of Sweat Gold

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    lulz fish

    [​IMG]
     
  16. Schmoopy

    Schmoopy Shit Mult Hunter Gold

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    We begin to die the second we're born. :cwl:
     
  17. Billy Brown

    Billy Brown Slippin Jimmy VIP

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    If you are going to get cancer, prostrate cancer is a good on to get.
     
  18. Doug Masters

    Doug Masters ok VIP

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    me personally?

    I feel great! :D
     
  19. Schmoopy

    Schmoopy Shit Mult Hunter Gold

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    :scream:
     
  20. Mark Mayonnaise

    Mark Mayonnaise You look like a tree! VIP

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    And this guy's saying "What do you want from me?"


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