There is some evidence coming to light, since that article was written that high dose selenium may contribute to diabetes type II.

http://diabetes.webmd.com/news/20070...-diabetes-risk

so the Upper Limit should be lowered for certain risk groups, depending on dietary intake.

More studies are needed about this, but I think it is prudent not to go above 100mcg/day.

Selenium is also important for conversion of thyroid hormone in the tissues to T3.

While I know your "heart" and intentions are in a helpful place,Roseblue, the title of that
article is somewhat misleading.

Right now based on testing for the population in general, the two most ignored things that
appear low in people are 1) magnesium (up to 70% are low in this), and Vit D (projected
figures are 50% for this).

The B-complex including B12 follows closely after those two.
Just taking "some herbs" usually does not restore health, to many people.

Following B-complex, is zinc. Many drug therapies deplete zinc and vegetarians can
be low in zinc too. (low zinc reduces immunity and makes infections more likely)