A Medical Student Blog

Unofficial thoughts on medicine and medical school

Follow up to Omega-3’s

Hi All!

This is a quick note, so, poorly written, but I’ve been looking up the safety of fish,and I think the take home message seems to be that lots of fish are unsafe — unfortunately.Marion Nestle’s book, What To Eat, talks about this in detail.  She reports that a studycame out in Science (2004) which looked at the PCB levels of 700 samples of salmon from all over the world.  

Salmon is typically known as one of the safest fish out there, and one of the mostnutritious.  Unfortunately, this report found that these salmon all were contaminatedwith unsafe levels of PCBs.  Only salmon from Chile and Washington State were deemedacceptable.  Fish from everywhere else?  The study found those other salmon simply had unacceptable levels of PCBs.   

Moral of the story?  It seems like this would be an argument whyone would want to use fish oil supplements — from a good brand which has taken outall the dioxins, PCBs and methylmercury.   Only five brands — omegabrite,nordic naturals, olay, vitamin shoppe and coromega have allowed themselves to be independentlytested for dioxins, PCBs and methylmercury (source: www.consumerlabs.com).These are just drafts of thoughts, so more on this later — but I wanted to just let you all about this sooner, as opposed to later.




August 15, 2007 - Posted by | Health news, Nutrition, Uncategorized


  1. Hi, well is very interesting all what you say, i’m from Venezuela so my english is not that well(i think), sorry for that. What i will like to ask is what will be the behavior in mice (i prefer) or in people(the omega 3 and 6)…that will help me a lot! it is for my school proyect! =S.
    If you can send me the answer as soon as possible…Please ^^!!

    well thanks in advance…

    Comment by Yadaly | March 25, 2008 | Reply

  2. Hi,
    I found your presentation on youtube on this subject, and just wanted to point out that flax oil is comparable to (and interchangeable with) fish oil in terms of the omega 3 EFAs.

    Hemp seed oil is another excellent source of EFAs, without the risk of PCBs or plastics that have been contaminating the world fish supply. Krill oil is very good also, but unfortunately very expensive. Red palm oil is very high in tocotrienols, and grapeseed and olive oils are highly beneficial as well.

    This site appears not to be updated for a long time, hope all is well and look forward to hearing more from you in the future. Your sincerity and open mind is helping to restore my hope in the medical profession.
    Please keep up the excellent work!!

    Comment by Dr Frank N Stein | August 10, 2009 | Reply

  3. Hello jeff I have a child who has ADD,I heard that fish oil is a natural supplament to help with children with ADD. My wife and I have tried all types of supplements including Neu-Becalm’d with little or no results. We do not want to give our child harsh medication such as rittelin,methylin etc,which the doctors prescribe.Would you have any information on fish oils and children with ADD?
    Best Regaurds,

    Comment by Jose | October 13, 2009 | Reply

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