Know Your Blood Parameter : Copper
- Summarised by TGHC Editorial Team

- Jul 17, 2025
- 4 min read
Updated: Dec 23, 2025

1. Parameter Name
Copper
Copper is a reddish-brown metal that is highly valued for its excellent electrical and thermal conductivity, making it a crucial material in various industries. Its atomic number is 29, and it is represented by the symbol 'Cu' in the periodic table, derived from the Latin word 'cuprum.' Copper is not only one of the oldest metals known to humanity but also plays a pivotal role in modern technology and infrastructure.
2. Test Type
The measurement of copper levels can be performed using blood or urine samples, specifically through serum copper testing. Blood tests are typically more common, as they provide a direct assessment of copper levels circulating in the bloodstream. Urine tests can also be utilized, particularly in cases where the excretion of copper needs to be evaluated, such as in Wilson's disease, to determine how well the body is handling copper.
3. Normal Range
The normal range for serum copper levels is generally considered to be between 70 and 140 micrograms per deciliter (µg/dL). Values falling within this range indicate adequate copper levels that are essential for various physiological functions, including the formation of red blood cells, maintenance of nerve cells, and the immune system's proper functioning. However, it is important to note that reference ranges may vary slightly depending on the laboratory and the specific population being tested.
4. High Levels Indicate
Elevated copper levels in the body can be indicative of several serious health conditions. One of the primary disorders associated with high copper levels is Wilson’s disease, a genetic disorder that leads to excessive copper accumulation in the body, particularly in the liver and brain, resulting in significant organ damage. Additionally, copper toxicity can occur due to excessive dietary intake or exposure to copper-containing substances, leading to symptoms such as nausea, vomiting, and abdominal pain. Liver disease, which may impair the organ's ability to process and excrete copper, can also contribute to elevated copper levels in the bloodstream.
5. Low Levels Indicate
Conversely, low levels of copper in the body can signal a range of health issues. Menkes disease is a rare genetic disorder characterized by defective copper transport, leading to severe copper deficiency and associated neurological and developmental issues. Malnutrition, particularly in cases where the diet lacks adequate copper sources, can result in low serum copper levels. Additionally, malabsorption syndromes, such as celiac disease or Crohn's disease, can hinder the body's ability to absorb copper from food, leading to decreased copper levels in the bloodstream.
6. Why It's Tested
Copper levels are tested to investigate potential metabolic or genetic disorders related to copper metabolism. Abnormal copper levels can provide crucial insights into underlying health issues that may not be immediately apparent through other diagnostic methods. Testing for copper levels can help clinicians diagnose conditions like Wilson's disease or Menkes syndrome and guide treatment decisions. It is also useful in monitoring patients who are at risk of copper deficiency or toxicity due to their medical history or dietary habits.
7. Associated Symptoms (if abnormal)
When copper levels are found to be abnormal, a variety of symptoms may manifest. High copper levels can lead to fatigue, neurological symptoms such as tremors, mood disturbances, and cognitive decline, as well as weakened immunity, making individuals more susceptible to infections. On the other hand, low copper levels can result in symptoms such as anemia, bone abnormalities, and neurological issues, including problems with coordination and balance. The presence of these symptoms often necessitates further investigation and intervention to address the underlying cause of the abnormal copper levels.
8. What To Do If Abnormal
If copper levels are found to be abnormal, it is essential to address the underlying condition responsible for the imbalance. For high copper levels, treatment may involve dietary modifications to limit copper intake, the use of chelation therapy to help remove excess copper from the body, and management of any associated liver disease. In cases of low copper levels, correcting the deficiency may involve dietary changes to include more copper-rich foods or, in some instances, supplementation under medical supervision. Regular monitoring of copper levels may also be necessary to ensure that treatment is effective and to prevent recurrence of the imbalance.
9. Common Conditions Related
Several conditions are commonly associated with abnormal copper levels. Wilson’s disease is perhaps the most well-known condition linked to copper overload, requiring careful management to prevent serious complications. Menkes syndrome, on the other hand, is associated with copper deficiency and presents a different set of challenges. Other conditions that may affect copper levels include liver diseases such as hepatitis or cirrhosis, which can disrupt the body's copper metabolism, as well as certain genetic disorders and malabsorption syndromes that can lead to imbalances in copper levels.
10. Nutrition or Lifestyle Connection
The relationship between nutrition, lifestyle, and copper levels is significant. Foods rich in copper include shellfish, particularly oysters, organ meats such as liver, nuts (especially cashews and almonds), seeds (like sunflower seeds), and whole grains. Incorporating these foods into one’s diet can help maintain adequate copper levels. However, it is also crucial to be mindful of excessive copper intake from supplements or certain water sources, as this can lead to toxicity. A balanced diet that includes a variety of nutrients is essential for overall health and proper copper metabolism.
11. References (APA Format) NIH Office of Dietary Supplements. (2023). Copper. MedlinePlus. (2023). Copper blood test.



