Copper is a trace mineral that is essential for human health. It works with enzymes, which are proteins that aid in the biochemical reactions of every cell. Copper assists these many of these enzymes in crucial reactions in the body.
Copper’s functions include:
Recommended Dietary Allowance/Adequate Intake
|0-6 months||200||Not determinable|
|7-12 months||220||Not determinable|
|19 years and older||900||10,000|
18 years and younger
over 18 years
18 years and younger
over 18 years
Many studies show that Americans consume less than adequate amounts of dietary copper. However, copper deficiency in adults is rare. A deficiency may occur, though, due to certain genetic problems, long-term shortages of dietary copper, or excessive intakes of zinc and iron. In addition, premature infants and infants suffering from malnutrition may have deficiencies of copper. People who have had gastric surgery or have conditions that affect how their bodies absorb nutrients are also at risk for copper deficiency.
If you are unable to meet your copper needs through dietary sources, copper supplements may be necessary. Copper supplements are usually taken by mouth, but in some cases are given by injection. Your doctor should determine if you need such supplementation.
Cases of toxicity from copper are rare.
Excess copper intake may lead to liver and kidney damage. Symptoms of copper toxicity may include:
Foods high in copper include:
If you have a condition that impairs your body’s ability to absorb, use, and excrete copper, your doctor may recommend changing your dietary intake of copper. For example, Wilson’s disease is a genetic condition in which the body cannot excrete copper resulting in increased copper levels in the body. Another genetic disease, Menkes syndrome, prevents copper absorption in the intestine and produces symptoms of copper deficiency.
Taking certain medications or supplements may also affect your copper levels. Zinc supplements, for instance, can interfere with how your body absorbs copper. If you are concerned about how much copper you are getting in your diet, talk to your doctor.
Department of Agriculture
Eat Right—Academy of Nutrition and Dietetics
Copper. Linus Pauling Institute, Oregon State University website. Available at: http://lpi.oregonstate.edu/mic/minerals/copper. Updated January 2014. Accessed June 30, 2016.
Copper deficiency. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed. Updated June 20, 2014. Accessed June 30, 2016.
Dietary reference intakes: elements. Institute of Medicine website. Available at: http://www.nationalacademies.org/hmd/Global/News%20Announcements/~/media/48FAAA2FD9E74D95BBDA2236E7387B49.ashx. Accessed June 30, 2016.
Obikoya G. The benefits of zinc. The Vitamins & Nutrition Center website. Available at: http://www.vitamins-nutrition.org/vitamins/zinc.html. Accessed June 30, 2016.
Last reviewed June 2016 by Michael Woods, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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