Copper, Serum or Plasma

Serum Copper measures the level of copper, an essential trace mineral involved in energy production, iron metabolism, connective tissue formation, and neurotransmitter synthesis. It often travels bound to ceruloplasmin. Both deficiency and excess can be harmful. Deficiency can cause anemia and neurological issues, while excess (e.g., Wilson's disease or high intake relative to zinc) can promote oxidative stress. Maintaining balance, often assessed alongside zinc and ceruloplasmin (Copper/Zinc ratio ideally ~0.7-1.0), is key.