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Re: Selenium Larry Hoover

Posted by blueheeler on July 3, 2003, at 9:42:40

In reply to Re: Selenium blueheeler, posted by Larry Hoover on June 29, 2003, at 9:25:11

> > >
> > > Make sure you add selenium, to a total of at least 200 mcg/day (it should be in the multi, too). Zinc is probably at about 15 mg in the multi, but you should aim for more like 40-50 mg a day.
> >
> >
> > Hi Larry
> >
> > Here in Australia vitamin manufacturers are required by law to add the following statement on the label of any supplement containing selenium
> >
> > "This product contains selenium, which is toxic in high doses. Signs of toxicity may include loss of hair and nails. Do not exceed a daily dose of 100 micrograms of selenium from all sources other than food."
> >
> > What do you know about the Australian recommended doses of selenium in supplement form (of 100mcg MAXIMUM per day) and this warning on the labels of products containing selenium in Australia and the discrepancy between this and the recommended doses of selenium in North America?
> >
> > Regards
> > blueheeler
> >
> > ***( formerly bluedog but I forgot my password and had to re-register under a new name)***
>
> Hey, dog. How ya been?
>
> It might depend on how much is already in the diet. I know that New Zealanders are chronically deficient in selenium, but I don't know about Aussies. It really depends on the soil.
>
> Here's a quotation from an article in the Jornal of Nutrition, "Selenomethionine: A Review of Its Nutritional Significance, Metabolism and Toxicity", by Gerhard N. Schrauzer
>
>
> "Dietary Se intakes depend on regional Se availability and the types of foods consumed. In American adults, Se intakes typically range from 80 to 165 g/d (53) . Although observations of subjects residing in high Se regions or taking Se supplements previously identified Se intakes of up to 724 g/d by adults as safe, it is considered approximate. To provide a sufficiently wide margin of safety, the reference dose (RfD) for Se from all nutritional sources for a 70-kg human has been set at 350 g/d (10) , corresponding to 5 g Se/(kg body d) or 5 times the recommended dietary allowance. The RfD thus defines as safe the total intake of Se by an American adult who is subsisting on a normal diet and is taking an additional 200 g Se/d in the form of a nutritional supplement. The RfD may still be revised pending the outcome of ongoing studies by the Environmental Protection Agency, but is unlikely to change significantly in the light of currently available evidence."
>
> The full-text is available at:
> http://www.nutrition.org/cgi/content/full/130/7/1653
>
> Lar

Thanks Larry

I've been dealing with some issues (legal) against my employer so I haven't had much spare time to post here at PB. I'm not doing too bad though considering all the dirty tricks my employer has been playing against me.....basically a depressed employee is seen by (the new) management as a broken machine that should be tossed onto the garbage heap and replaced with a new one. I obviously disagree therefore the legal battles.

Thanks for that article. I've also bookmarked the site itself for future reference. I think the local soil where I live is pretty well selenium deficient. Maybe the warning labels on the bottles are due to a case of toxicity from a selenium rich area here in Aussie land and as the legislation relating to vitamin supplements is passed by the federal government (as opposed to individual state governments) they have simply passed the law to cover the whole country not taking into account soil differences in a country as large as Australia (pretty similar in size to both the USA and Canada.

I'll look into this and If I find out more I'll let you know

hoping your well Larry
warm regards
bluedog


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poster:blueheeler thread:234747
URL: http://www.dr-bob.org/babble/20030701/msgs/238941.html