Stories
Slash Boxes
Comments

SoylentNews is people

SoylentNews is powered by your submissions, so send in your scoop. Only 19 submissions in the queue.
posted by martyb on Wednesday January 31 2018, @11:26PM   Printer-friendly
from the Go-Fish! dept.

Prof. David Ma has discovered that marine-based omega-3s are eight times more effective at inhibiting tumour development and growth.

"This study is the first to compare the cancer-fighting potency of plant- versus marine-derived omega-3s on breast tumour development," said the professor in the Department of Human Health and Nutritional Sciences. "There is evidence that both omega-3s from plants and marine sources are protective against cancer and we wanted to determine which form is more effective."

[...] Published in the Journal of Nutritional Biochemistry, the study involved feeding the different types of omega-3s to mice with a highly aggressive form of human breast cancer called HER-2. HER-2 affects 25per cent of women and has a poor prognosis.

[...] Ma found overall exposure to marine-based omega-3s reduced the size of the tumours by 60 to 70 per cent and the number of tumours by 30 per cent.

However, higher doses of the plant-based fatty acid were required to deliver the same impact as the marine-based omega-3s.

Source: https://news.uoguelph.ca/2018/01/choose-omega-3s-fish-flax-cancer-prevention-study-finds/

Journal Reference: Jiajie Liu, Salma A. Abdelmagid, Christopher J. Pinelli, Jennifer M. Monk, Danyelle M. Liddle, Lyn M. Hillyer, Barbora Hucik, Anjali Silva, Sanjeena Subedi, Geoffrey A. Wood, Lindsay E. Robinson, William J. Muller, David W.L. Ma. Marine fish oil is more potent than plant based n-3 polyunsaturated fatty acids in the prevention of mammary tumours. The Journal of Nutritional Biochemistry, 2017; DOI: 10.1016/j.jnutbio.2017.12.011


Original Submission

 
This discussion has been archived. No new comments can be posted.
Display Options Threshold/Breakthrough Mark All as Read Mark All as Unread
The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
  • (Score: 2, Insightful) by Anonymous Coward on Thursday February 01 2018, @12:31AM (5 children)

    by Anonymous Coward on Thursday February 01 2018, @12:31AM (#631273)

    Could the benefits of fish based omegas be canceled out by the higher mercury and other pollutants content?

    Starting Score:    0  points
    Moderation   +2  
       Insightful=1, Interesting=1, Total=2
    Extra 'Insightful' Modifier   0  

    Total Score:   2  
  • (Score: 4, Informative) by beckett on Thursday February 01 2018, @03:34AM (2 children)

    by beckett (1115) on Thursday February 01 2018, @03:34AM (#631325)

    Murcury and other pollutants are bioaccumulated over time, and concentrated upstream in the food web. If you ate nothing but apex predators such as tuna, swordfish, shark, etc., you would also get a large lump of pollutants. this is why pregnant people are advised against eating too much tuna.

    OTOH if you eat prey fish such as herring, or fish with relatively short lifespans such as a salmon (3-6 years), those animals, while predators, do not have the opportunity to accumulate as many pollutants in their tissue over time. avoiding bottom feeders (crabs, flatfish) can further reduce the amount of pollutants in your fish.

    At this time you can still obtain the appropriate nutrients and avoid much of those concentrated pollutants if you make seafood choices based on the behaviour, lifespan, and trophic niche within the food web.

    • (Score: 0) by Anonymous Coward on Thursday February 01 2018, @11:33AM (1 child)

      by Anonymous Coward on Thursday February 01 2018, @11:33AM (#631428)

      OTOH if you eat prey fish such as herring, or fish with relatively short lifespans such as a salmon (3-6 years), those animals, while predators, do not have the opportunity to accumulate as many pollutants in their tissue over time. avoiding bottom feeders (crabs, flatfish) can further reduce the amount of pollutants in your fish.

      Oh, the ethics. Doing the opposite will clear the environment of pollutants and concentrate them in the cemetery. What to do, what to do?

      • (Score: 2) by beckett on Thursday February 01 2018, @06:19PM

        by beckett (1115) on Thursday February 01 2018, @06:19PM (#631603)

        In the case of your particular dilemma over marine food choices, follow your conscience.

  • (Score: 2) by DannyB on Thursday February 01 2018, @04:22PM (1 child)

    by DannyB (5839) Subscriber Badge on Thursday February 01 2018, @04:22PM (#631519) Journal

    Today I have signed an executive order directing the FDA to reclassify Mercury as an important mineral and develop a US RDA for it so that Americans should know how much to take daily.

    It's a mineral. One of the best, and trust me, I know my minerals, its one of the very best minerals, I promise. I can personally assure you that daily use of small amounts of mercury will increase your brain function. Believe me. I'm like a stable genius.

    --
    To transfer files: right-click on file, pick Copy. Unplug mouse, plug mouse into other computer. Right-click, paste.