Monday, January 03, 2005
THE MERCK MANUAL, Sec. 1, Ch. 4, Mineral Deficiency And Toxicity
"Selenium deficiency is rare among humans, even in New Zealand and Finland, where selenium intake is 30 to 50 �g/day, compared with 100 to 250 �g/day in the USA and Canada. In China, where selenium intake averages 10 to 15 �g/day, selenium deficiency occurs in association with"