MSD Manual

Please confirm that you are a health care professional

honeypot link

Copper Deficiency

By

Larry E. Johnson

, MD, PhD, University of Arkansas for Medical Sciences

Last full review/revision Dec 2021| Content last modified Dec 2021
Click here for Patient Education

Copper is a component of many body proteins; almost all of the body’s copper is bound to copper proteins.

Acquired Copper Deficiency

If the genetic mechanisms controlling copper metabolism are normal, dietary deficiency rarely causes clinically significant copper deficiency (except for total parenteral nutrition with insufficient supplementation) . Causes include

  • Severe childhood protein deficiency

  • Persistent infantile diarrhea (usually associated with a diet limited to milk)

  • Severe malabsorption (as in sprue or cystic fibrosis)

  • Bariatric surgery (where vitamin B12 deficiency may also be present)

  • Excessive zinc intake

Deficiency may cause neutropenia, impaired bone calcification, myelopathy, neuropathy (with symptoms similar to vitamin B12 deficiency), and hypochromic anemia not responsive to iron supplements.

Diagnosis of acquired copper deficiency is based on low serum levels of copper and ceruloplasmin, although these tests are not always reliable.

Treatment of acquired copper deficiency is directed at the cause, and copper 1.5 to 3 mg/day orally (usually as copper sulfate) is given.

Inherited Copper Deficiency

Inherited copper deficiency occurs in male infants who inherit a mutant X-linked gene. Incidence is about 1 in 100,000 to 250,000 live births. Copper is deficient in the liver, serum, and essential copper proteins, including cytochrome-c oxidase, ceruloplasmin, and lysyl oxidase.

Symptoms and Signs of Inherited Copper Deficiency

Symptoms of inherited copper deficiency are severe intellectual disability, vomiting, diarrhea, protein-losing enteropathy, hypopigmentation, bone changes, and arterial rupture; the hair is sparse, steely, or kinky.

Most affected children die by age 10 years.

Diagnosis of Inherited Copper Deficiency

  • Serum copper and ceruloplasmin levels

Diagnosis of inherited copper deficiency is based on low copper and ceruloplasmin levels in serum. Because early diagnosis and treatment seem to result in a better prognosis, the disorder is ideally detected before age 2 weeks. However, diagnostic accuracy of these tests is limited. Thus, other tests are being developed.

Treatment of Inherited Copper Deficiency

  • Copper histidine

Parenteral copper is usually given as copper histidine 250 mcg subcutaneous injection twice a day to age 1 year, then 250 mcg subcutaneously once a day after the first year; monitoring of kidney function is essential during treatment.

Despite early treatment, many children have abnormal neurodevelopment.

Click here for Patient Education
NOTE: This is the Professional Version. CONSUMERS: Click here for the Consumer Version
Professionals also read
Test your knowledge
Nutritional Requirements
Which of the following is the general recommended dietary intake of protein (in ounces) for 40-year-old men who participate in 30 to 60 minutes of moderate physical activity on a daily basis?
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
Become a pro at using our website 

Also of Interest

Become a pro at using our website 
TOP