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Perchlorate Water Contamination A Reason To Supplement With Iodine ?

Discussion in 'Minerals' started by burtlancast, Jul 29, 2015.

  1. burtlancast

    burtlancast Member

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    https://en.wikipedia.org/wiki/Perchlorate

    "Perchlorate is a potent competitive inhibitor of the thyroid sodium-iodide symporter.[48] Thus, it has been used to treat hyperthyroidism since the 1950s.[49] At very high doses (70,000–300,000 ppb) the administration of potassium perchlorate was considered the standard of care in the United States, and remains the approved pharmacologic intervention for many countries.

    In large amounts perchlorate interferes with iodine uptake into the thyroid gland.

    in January 2008, California's Department of Toxic Substances Control stated that perchlorate is becoming a serious threat to human health and water resources.

    A study involving healthy adult volunteers determined that at levels above 0.007 milligrams per kilogram per day (mg/(kg·d)), perchlorate can temporarily inhibit the thyroid gland's ability to absorb iodine from the bloodstream ("iodide uptake inhibition", thus perchlorate is a known goitrogen).[55] The EPA converted this dose into a reference dose of 0.0007 mg/(kg·d) by dividing this level by the standard intraspecies uncertainty factor of 10. The agency then calculated a "drinking water equivalent level" of 24.5 ppb by assuming a person weighs 70 kilograms (154 pounds) and consumes 2 liters (68 ounces) of drinking water per day over a lifetime.[56]"

    At a 2013 presentation of a previously unpublished study, it was suggested that environmental exposure to perchlorate in pregnant women with hypothyroidism may be associated with significant risk of low IQ in their children.[60]

    In February 2008, U.S. Food and Drug Administration said that U.S. toddlers on average are being exposed to more than half of the U.S. EPA's safe dose from food alone.[65] In March 2009, a Centers for Disease Control study found 15 brands of infant formula contaminated with perchlorate. Combined with existing perchlorate drinking water contamination, infants could be at risk for exposure to perchlorate above the levels considered safe by E.P.A.[66]
     
  2. Parsifal

    Parsifal Member

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    Do you supplement with iodine? I remember reading Peat saying that too much iodine can inhibit thyroid as well and that people rarely lack iodine nowadays, goiters are very rare. Maybe eating shellfish will be enough?
     
  3. jyb

    jyb Member

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  4. OP
    burtlancast

    burtlancast Member

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    From your link:

     
  5. Entropy

    Entropy Member

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    Add the other competitors fluoride, bromine, chlorine.. Maybe we should supplement iodine..
     
  6. OP
    burtlancast

    burtlancast Member

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    Seems as well leafy vegetables (especially lettuce) grown hydroponically accumulate perchlorate much higher than when grown in soil.
    http://www.gilroydispatch.com/news/comm ... f75ff.html


    And animals like cows and goats metabolise ingested perchlorate much better than lactating mothers do.

    Tissue Distribution, Elimination, and Metabolism of Sodium [
    <sup>36</sup>Cl]Perchlorate in Lactating Goats
     
  7. OP
    burtlancast

    burtlancast Member

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    Indeed.

    http://wweb.uta.edu/faculty/dasgupta/Pa ... /AKirk.htm
     
  8. Giraffe

    Giraffe Member

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  9. Parsifal

    Parsifal Member

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    Peat seems to be against iodine supplementation as well.
     
  10. OP
    burtlancast

    burtlancast Member

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    Your article dates from 1990.

    My quote comes from an article published around 2008 onwards;
    And milk contamination with perchlorate was first discovered in 2004 in the USA.
     
  11. Giraffe

    Giraffe Member

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    I noted that the data I linked were not very fresh. I checked nutritiondata.com, but it didn't list iodine content of milk. An article from 2011 - Iodine - Fact Sheet for Health Professionals - seemed consistent with the article I linked as far as the iodine content of milk is concerned (1 cup = 56 mcg). I did not digger any deeper. Maybe someone from the US knows about recent tests?

    How many nursing mothers drink a liter milk and eat eggs daily? These foods are largely demonized in society. Too much cholesterol! Animal fats are harmful! Milk causes allergies! Animals are suffering to serve us as food!

    This is raypeatforum. For most here dairy products and eggs are staple foods. The majority relies on commercial products. If the animal feed is fortified with iodine, we do supplement iodine nolens volens.

    For people in Europe: We recently discussed iodine supplementation in another threat.
     
  12. OP
    burtlancast

    burtlancast Member

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    Well, perhaps the mothers do ingest enough iodine from cow milk or eggs, but the article seems to suggest that perchlorate will lower both thyroid synthesis in the mother as well as her ability to excrete some iodine in her milk, while the perchlorate finds his way there.

    The solution would be to supplement the child with iodine without giving him at the same time perchlorate.
     
  13. Parsifal

    Parsifal Member

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    Maybe it's time to ask Ray what he thinks about that? I've been wondering a lot of things about this topic as well...
     
  14. Parsifal

    Parsifal Member

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    Are you supplementing with iodine burt and other people? How do you feel in that case? How is your blood test?
     
  15. montmorency

    montmorency Member

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    Yes, since even by official measures, UK is iodine (and selenium) deficient (I'm also taking the co-factors, but get my vitamin A from liver and eggs). Also, salt here is not generally iodised.
    I don't feel much different, to be honest. Not had a blood test.
    We are fortunate that most of us (including me) don't have our water fluoridised, and we personally don't have any new furnishings or a new car, so maybe we aren't getting too much bromine that way. The water does have chlorine though, and I drink it, and it's unfiltered, so that's one source of halogens. But so far, I've not noticed any "detox" symptoms.

    One reason I'm supplementing is (hopefully) as a prophylactic against prostate cancer (and benign prostate growth). I'm getting to the age where that's a more imminent threat. cf. Dr David Derry.
     
  16. Parsifal

    Parsifal Member

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    Won't you get a goiter if you are really defficient in iodine or is it more subtle than that?

    Is there scientific proof that these toxins are stored in tissues?

    How much of these toxins on average do we absorb in our body/day and how much iodine do we need to detox these? Is there a proof that at these doses the iodine doesn't shut down the thyroid but detox the bad things?
    The problem would be if it increases TSH and other pituitary hormones I guess?

    Are some people here taking iodine and how do you feel?
     
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