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recommended daily allowance
2 milligrams per day
0.0004% of body is copper
copper is essential in tiny amounts and toxic in large amounts
The risks of a low copper intake are tissue damage, liver damage, disease, and in incredibly rare cases death.
fun facts:
Copper cookware is the most highly-regarded by the world's chefs. It has the best heat transfer of any material used in cooking, and as heating is uniform there are no hot spots.
It is estimated that about 80% of the copper humanity has ever produced is still in use.
Copper is the only metal other than gold that has natural color. Other metals are either gray or white.
Pennies today contain only about 2.5% copper. Why? The value of a 100% copper coin would far exceed one cent. So, the U.S. Mint makes each penny from a slug of zinc with a layer of copper electroplated onto it.
The Statue of Liberty is covered with 200,000 pounds of copper sheeting.
An expert panel of the World Health Organization has concluded that copper deficiency is much more of a global problem than copper toxicity.
bibliography:
“Copper. (Good Sources of Nutrients) (pamphlet)." Pamphlet by: U.S. Department of Agriculture. U.S. Department of Agriculture, 1990. p1A(3). Student Resource Center - Gold. Gale. Jay M Robinson High School. 9 Sep. 2009 <http://find.galegroup.com>
pictures:
Ward, Dave. "Dave Ward Photography's photostream." Flickr.com. June 26, 2005. 10 Sep 2009
DermRounds, "dermrounds." Flickr.com. August 5, 2008. 10 Sep 2009