Copper levels: what's normal, high and low
A trace mineral essential for iron metabolism, energy production, and connective tissue health.
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
The short answer
Copper is measured with a standard blood draw; no fasting is needed. A typical reference range is 70.0 – 140 mcg/dL (male, age 18+; more bands below). At TestWell it's $31.99 all-in as Copper, results in 3–5 business days, drawn at Quest or Labcorp. An out-of-range result is a prompt to look closer, not a diagnosis.
- Units
- mcg/dL / ug/dL
- Sample
- Blood draw
- Fasting
- Not required
- Results
- 3–5 business days
- Price
- $31.99
- Labs
- Quest or Labcorp · BioReference in NY/NJ
Copper Reference Range
These are the typical adult reference ranges used by major US labs. Your report will include the specific range used by the lab that processed your sample.
| Population | Range |
|---|---|
| Male, age 18+ | 70.0 – 140 mcg/dL |
| Female, age 18+ | 80.0 – 155 mcg/dL |
Reference ranges are educational. Always interpret your result with the specific range printed on your lab report and discuss anything outside the range with a clinician.
Have a result in hand? analyze it with your AI assistant using these reviewed ranges, or run it through our explainer. Tools: look up another marker's range · convert lab units
What your Copper result may mean
Can reflect inflammation, certain liver conditions, or estrogen-containing medications.
What a high Copper means: causes, symptoms, next steps ↓Can reflect malabsorption, gastric bypass, or excess zinc supplementation.
What a low Copper means: causes, symptoms, next steps ↓Educational only — not a diagnosis. Many factors can influence a single result. Discuss anything that concerns you with a healthcare provider.
What does a high Copper mean?
High serum copper most often reflects inflammation, infection, pregnancy or oral estrogens, because copper travels bound to ceruloplasmin, an acute-phase protein that estrogen also raises. Liver disease, some cancers, copper supplements and rarely copper-contaminated water or cookware contribute. Wilson disease, the inherited copper-overload disorder, typically shows a LOW serum copper (low ceruloplasmin) with high free copper and urine copper — so a high total copper largely argues against it.
Common causes of a high Copper
- Inflammation, infection, rheumatoid arthritis and other inflammatory conditions
- Pregnancy, oral contraceptives, estrogen therapy
- Liver disease, biliary obstruction
- Copper supplements, high-copper water or cookware
- Some cancers, hyperthyroidism
- Hemochromatosis (mild)
Ordered from most to least common.
Symptoms that can go with it
- None from copper itself in most cases
- Nausea, abdominal pain, headache with acute excess
What clinicians usually check next
- Ceruloplasmin and CRP at the same time — most high values are explained by them
- Liver panel
- Zinc (copper and zinc oppose each other)
- 24-hour urine copper only when Wilson disease or toxicity is a real question
Follow-up tests at TestWell: Zinc ($26.99), C-Reactive Protein (CRP) ($26.99), Ceruloplasmin ($29.99).
Does high copper mean Wilson disease?
Usually the opposite. Wilson disease lowers ceruloplasmin and therefore total serum copper; the excess is 'free' copper, which needs a calculation or a urine collection to show. A high total copper with a high ceruloplasmin is inflammation or estrogen.
Educational only — not a diagnosis. A single result outside the range is a prompt to look closer with a clinician.
What does a low Copper mean?
Low copper is under-recognized and increasingly seen after bariatric surgery and with long-term high-dose zinc supplements (including denture creams), which block copper absorption. Malabsorption, malnutrition, prolonged tube feeding, and Menkes disease in infants are other causes. Deficiency produces anemia and low neutrophils that don't respond to iron, and a slowly progressive nerve and spinal-cord problem that mimics B12 deficiency — reversible if caught early.
Common causes of a low Copper
- High-dose zinc supplements or lozenges over months, zinc-containing denture cream
- Bariatric surgery (gastric bypass, duodenal switch), celiac disease, short bowel
- Malnutrition, prolonged parenteral or enteral nutrition without copper
- Nephrotic syndrome, excess iron supplementation
- Wilson disease (low ceruloplasmin, low total copper — but copper overload in tissues)
- Menkes disease (infants, rare)
Ordered from most to least common.
Symptoms that can go with it
- Fatigue, pallor, frequent infections (anemia and neutropenia)
- Numbness and tingling, unsteady gait, weakness in the legs — the myeloneuropathy that resembles B12 deficiency
- Premature gray hair, brittle bones
What clinicians usually check next
- Ceruloplasmin, CBC with differential, zinc, B12
- Stop excess zinc; review surgical and nutritional history
- Neurology review if nerve symptoms are present; copper repletion is directed by a clinician
- 24-hour urine copper and liver panel if Wilson disease is possible (young adults with liver or neurological signs)
Follow-up tests at TestWell: CBC with Differential ($21.99), Zinc ($26.99), Ceruloplasmin ($29.99).
Seek care promptly if
- Low copper with progressive leg weakness, unsteady walking or loss of sensation — prompt evaluation; nerve damage becomes permanent if untreated
How does zinc cause copper deficiency?
Zinc induces a gut protein (metallothionein) that traps copper in intestinal cells, so it is excreted rather than absorbed. Months of 40+ mg/day of zinc — common with immune-support dosing — is enough.
Educational only — not a diagnosis. A single result outside the range is a prompt to look closer with a clinician.
How do you get a Copper test?
Order online, a licensed physician reviews the requisition, and you walk into a nearby lab for the draw. Copper is available on its own or inside these panels — panels cost less per marker when you want the fuller picture.
| Option | Includes | Price |
|---|---|---|
| Copper | This marker only | $31.99 |
| Vitamin & Mineral Deficiency Panel | 9 tests | $189.99 |
| Total Body Essentials Panel | 39 tests | $399.99 |
| Women's Hair Health Panel | 19 tests | $469.99 |
| Men's Hair Health Panel | 19 tests | $499.99 |
Quest vs. Labcorp for Copper: which lab should you pick?
Both are CLIA-certified national labs and the result is clinically equivalent, so pick whichever location is closer. Your report will print that lab's own reference range, which can differ slightly from the table above.
| Lab | Available | Price |
|---|---|---|
| Quest Diagnostics | Yes | $31.99 |
| Labcorp | Yes | $31.99 |
| BioReference (NY & NJ) | Yes | $34.99 |
Need help choosing a location? Use the lab finder to see draw sites near your ZIP.
Frequently asked
What does a high Copper mean?
High serum copper most often reflects inflammation, infection, pregnancy or oral estrogens, because copper travels bound to ceruloplasmin, an acute-phase protein that estrogen also raises. Liver disease, some cancers, copper supplements and rarely copper-contaminated water or cookware contribute. Wilson disease, the inherited copper-overload disorder, typically shows a LOW serum copper (low ceruloplasmin) with high free copper and urine copper — so a high total copper largely argues against it.
Does high copper mean Wilson disease?
Usually the opposite. Wilson disease lowers ceruloplasmin and therefore total serum copper; the excess is 'free' copper, which needs a calculation or a urine collection to show. A high total copper with a high ceruloplasmin is inflammation or estrogen.
What does a low Copper mean?
Low copper is under-recognized and increasingly seen after bariatric surgery and with long-term high-dose zinc supplements (including denture creams), which block copper absorption. Malabsorption, malnutrition, prolonged tube feeding, and Menkes disease in infants are other causes. Deficiency produces anemia and low neutrophils that don't respond to iron, and a slowly progressive nerve and spinal-cord problem that mimics B12 deficiency — reversible if caught early.
How does zinc cause copper deficiency?
Zinc induces a gut protein (metallothionein) that traps copper in intestinal cells, so it is excreted rather than absorbed. Months of 40+ mg/day of zinc — common with immune-support dosing — is enough.
Do I need a doctor's order to test my copper?
No. TestWell's licensed physician network reviews and approves your order — usually within minutes. You can place an order online without an in-person visit or a referral from your own doctor.
How long does it take to get Copper results?
Most Copper results are available in 1–3 business days after your specimen arrives at the lab. You'll get an email the moment your results are ready, with everything viewable in your TestWell portal.
How much does a Copper test cost?
Our Copper starts at $31.99. That's the all-in price — no copays, no insurance hoops, no surprise bills. HSA and FSA cards are accepted.
Do I need to fast before my Copper test?
Fasting is not required for the Copper test. You can have your blood drawn any time of day.
Which lab will process my Copper test?
Your test will be processed by Quest Diagnostics, Labcorp, or BioReference depending on which is closest to you and which lab carries the test. All three are CLIA-certified and trusted by hospitals nationwide. You'll choose your lab during checkout from 4,000+ locations.
What can throw off a Copper result?
Oral contraceptives and estrogen can change a Copper result without anything being wrong. Oral contraceptives and estrogen can raise Copper — expected; ferritin often improves because periods are lighter. Each is explained on our physician-reviewed "Before your test" pages; when one applies, remove it and retest.
Ready to test your copper?
Order in two minutes, get physician-approved, and visit a lab the same day. Starts at $31.99.