Doctor's Note

There is so much more mercury in fish compared to other foods that it can be used as a biomarker for fish consumption–see Hair Testing for Mercury. How much mercury exposure is there from fish as compared to amalgam fillings and vaccinations? See Amalgam Fillings vs. Canned Tuna and Mercury in Vaccinations vs. Tuna. Fish aren’t the only source of toxic heavy metals, though. Mercury has been found in both high fructose corn syrup-containing products (see Mercury in Corn Syrup?) and Ayervedic dietary supplements (Get the Lead Out). There are also videos on aluminum in cheese, arsenic in chicken, and a thousand other nutrition subjects.

For more context, check out my associated blog posts: Mercury Testing Recommended Before Pregnancy, Heading Shrinking from Grilling Meat and Fukushima Radiation and Seafood.

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  • Michael Greger M.D.

    There is so much more mercury in fish compared to other foods that it can be used as a biomarker for fish consumption–see Hair Testing for Mercury. How much mercury exposure is there from fish as compared to amalgam fillings and vaccinations? See Amalgam Fillings vs. Canned Tuna and Mercury in Vaccinations vs. Tuna. Fish aren’t the only source of toxic heavy metals, though. Mercury has been found in both high fructose corn syrup-containing products (see Mercury in Corn Syrup?) and Ayervedic dietary supplements (Get the Lead Out). There are also videos on aluminum in cheese, arsenic in chicken, and a thousand other nutrition subjects.

  • Jenay Brooke

    I think it is likely that many, many people have mercury poisoning and don’t realize it. When I started losing my hair about six years ago, I went to an integrative medical doctor who, among other things, tested me for heavy metal poisoning. I thought the test was unnecessary, but I went along with it. When the test came back, a score of nine in the mercury category was considered toxic. My score was 39! Mercury poisoning can cause hair loss, dry skin and mental confusion among other things.

    • Robert Haile

      Mine was 38 and I was eating fish but no other meats; convinced me to become vegan. My neuropathy persists, however, but my cognition and memory are back to normal. Also concentrated foods, such as organic rice sweetener & high fructose corn syrup may have high mercury levels. Now we only eat whole organic plant foods, nothing pre-processed.

  • D.A.

    This pregnant woman is so adorable! No makeup, bare belly, plain hair and completely stunning from the inside out. Absolutely inspirational. Hug her for me.

  • Han

    Just go vegan, mkay.

  • Joe S.

    Can you use hair analysis to determine nutriitional defecencies and recommendations for supplementation?

    • Wegan

      There have been books written about hair tests. Eg. Cutler. Heavy metals can skew the results. Also low mercury in the hair test may not mean you are clear depending on what the other minerals are doing.

  • http://renowebdesigngroup.com/ D Pow

    If a woman is pregnant and have been found to have high Mercury levels should is it OK or NOT to detox while pregnant? She sought a hair analysis from a Naturopath who stated that the removal of Mercury from her system would not be release into the blood stream and a detox via homeopathic means would be OK while pregnant. Comments?

    • Wegan

      If not in the bloodstream than where? I wouldn’t risk it.

  • Geoffrey Levens

    My experience is that hair testing has huge issue with false negatives. Pretty good for showing deficiencies but bunk for “excess”. Bodies store mercury and other heavy metals all over the place but unevenly with large deposits in some organs and nearly none elsewhere; hair often will miss significant body load

  • MaryFinelli

    There are so many better ways to obtain all of the nutrients derived from fish. Why put yourself or others at risk? Why cause needless harm to these aquatic animals? Fishing and fish farming are very inhumane and ecologically destructive.

    Rich sources of omegas include: flaxseed oil, flaxseeds, chia seeds, hemp seeds, and walnuts. Concentrated omega-3 fatty acids are available in algae supplements (algae being the source from which fishes obtain omegas). If you eat seafood, please opt exclusively for the many marvelous vegan versions there are of virtually every type of seafood imaginable. They’re better for us, for the other animals, and for the planet. They’re also delicious! http://fishfeel.org/seafood/