Minerals
Copper
Also called: copper gluconate, copper bisglycinate
A trace mineral for red blood cells, nerves and connective tissue.
- Why people take it
- Low copper, often caused by taking too much zinc.
- What the evidence says
- Needed only when low; deficiency is uncommon.
- How it is usually taken
- Usually 1 to 2 mg a day; often added to zinc products to prevent copper deficiency.
- Be careful
- Too much is toxic to the liver. Do not take with Wilson's disease.
- Medicines it can interact with
- High-dose zinc lowers copper; penicillamine and some other medicines bind it.
Other minerals
Common questions
What is Copper?
A trace mineral for red blood cells, nerves and connective tissue.
Why do people take Copper?
Low copper, often caused by taking too much zinc.
Does Copper work?
Needed only when low; deficiency is uncommon.
How much Copper do people take?
Usually 1 to 2 mg a day; often added to zinc products to prevent copper deficiency.
Is Copper safe?
Too much is toxic to the liver. Do not take with Wilson's disease.
Does Copper interact with medicines?
High-dose zinc lowers copper; penicillamine and some other medicines bind it.
Sources and further reading
Last reviewed 31 October 2026. Written by Satya Babu.
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