It's like most other things.
Too little is bad, and too much is worse.
The right amount?  Hard to say, but most selenium tablets are only 200 mcg 
(that's MICROgrams, not milligrams, 200 millionths of a gram).  This is a very 
small amount, and the recommendation is one tablet per day.  

Quote from Jonathan Wright:

"Selenium. Garlic and onions are the only common foods high in selenium, so if 
you're not allergic to them, include plenty in your diet -- along with the 
ginger. And I also recommend supplementing the onions and garlic with 200-500 
micrograms of selenium daily. But don't overdo it; it is possible to overdose 
at quantities of 1,500 to 2,000 micrograms daily."

As somebody else mentioned, Brazil nuts are also high in selenium.

Del
  ----- Original Message ----- 
  From: Dee 
  To: [email protected] 
  Sent: Tuesday, December 18, 2007 9:18 AM
  Subject: Re: CS>Rebuttals please


        Why are we having all this about selenium being highly toxic now?  I 
have just ordered some because I thought it was beneficial!  Dee 

        -------Original Message-------

        From: [email protected]
        Date: 18/12/2007 14:03:52
        To: [email protected]
        Subject: Re: CS>Rebuttals please

        It has been suggested that to protect from agyria when taking CS 
longterm, Selenium should also be taken. I have also been informed that 
supplemental selenium long term can be toxic. Maybe daily brazil nuts is a 
better option to protect from agyria and depletion.


        **************************************
        See AOL's top rated recipes 
(http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004) 
       
               
       

<<faint_grain.jpg>>