The following list of copper's effect on the body is quoted directly from WHFoods.com:
- Help your body utilize iron
- Reduce tissue damage caused by free radicals
- Maintain the health of your bones and connective tissues
- Help your body produce the pigment called melanin
- Keep your thyroid gland functioning normally
- Preserve the myelin sheath that surrounds and protects your nerves
Too much of an accumulation of copper in the body tissue can cause Wilson's Disease, according to Wikipedia.org.