Ingredient guide
Copper is an essential trace mineral needed for blood vessel health, connective tissue, and energy production. True dietary deficiency is uncommon but can happen with malabsorption, burns, kidney dialysis, or after gastric bypass. The adult adequate intake is 900 mcg per day.
Moderate evidenceCopper is an essential trace mineral your body needs in small amounts. It is found in shellfish, organ meats, nuts, seeds, and whole grains. The body holds only about 50 to 120 mg of copper in total, mostly in the liver, muscle, and bone, but uses it in enzymes that handle iron, build connective tissue, and produce cellular energy.
True dietary copper deficiency is uncommon but can happen with malabsorption conditions like Crohn or celiac disease, after gastric bypass, in long-term home parenteral nutrition, or with long-term high zinc intake. Symptoms include ataxia, anemia, neutropenia, and immune dysfunction. The adequate intake of 900 mcg per day for adults is easily met by food. Supplements are useful when there is a real deficit. We grade the deficiency-correction evidence as moderate.
The adequate intake for adults is 900 mcg per day, with higher needs in pregnancy and breastfeeding. The upper limit is 10 mg per day. Most people get enough from food. Ask your healthcare provider before higher doses, especially if you take zinc supplements.
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Yes, long-term high doses can. Many balanced multivitamins include a small amount of copper alongside zinc to prevent this.