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zoidberg · 23-09-2004, 06:21 PM

Hi Ironball,

Just found this on the web: http://healthlink.mcw.edu/article/964647329.html

Is there a risk of taking too much selenium?
There is a moderate to high health risk of too much selenium. High blood levels of selenium can result in a condition called selenosis. Symptoms include gastrointestinal upsets, hair loss, white blotchy nails, and mild nerve damage. The rare cases of selenium toxicity in the US have been associated with industrial accidents and a manufacturing error that led to an excessively high dose of selenium in a supplement. The Institute of Medicine has set a tolerable upper intake level for selenium at 400 micrograms per day for adults to prevent the risk of developing selenosis.

If 400mcg is the tolerable upper intake level then you need to eat half a kilo of tuna to be at risk.

Personally I'd be more worried about the mercury in it which is far more hazardous to your health. See http://www.mercurypolicy.org/

Mercury enters the food chain when coal burned in power stations releases mercury fumes into the atmosphere which dissolve in the oceans and are absorbed by fish :(

-zoidberg-

23-09-2004, 06:21 PM	#3 (permalink)
zoidberg Newbie Trainer Join Date: Sep 2004 Location: Herts, UK Posts: 38	Hi Ironball, Just found this on the web: http://healthlink.mcw.edu/article/964647329.html Is there a risk of taking too much selenium? There is a moderate to high health risk of too much selenium. High blood levels of selenium can result in a condition called selenosis. Symptoms include gastrointestinal upsets, hair loss, white blotchy nails, and mild nerve damage. The rare cases of selenium toxicity in the US have been associated with industrial accidents and a manufacturing error that led to an excessively high dose of selenium in a supplement. The Institute of Medicine has set a tolerable upper intake level for selenium at 400 micrograms per day for adults to prevent the risk of developing selenosis. If 400mcg is the tolerable upper intake level then you need to eat half a kilo of tuna to be at risk. Personally I'd be more worried about the mercury in it which is far more hazardous to your health. See http://www.mercurypolicy.org/ Mercury enters the food chain when coal burned in power stations releases mercury fumes into the atmosphere which dissolve in the oceans and are absorbed by fish :( -zoidberg- __________________ I hear, I forget. I see, I remember. I do, I understand.