Trace Minerals

Copper Benefits: Functions, Sources, and Dosage Information

Copper (Cu) works closely with iron in accomplishing the same functions. It is needed for RNA production, protein metabolism, healing processes, and hair color. It is involved in brain, nerve, bone, and connective tissue development. Several enzymes’ systems require this trace mineral. The highest concentration (amount per gram of tissue) is in the brain and liver. The estimated 70-80 mg of copper in the body are distributed throughout all the organs and cells.

Sources

Foods rich in iron are also rich in copper.

  1. Nuts (highest in Brazil nuts, almonds, hazelnuts, walnuts, and pecans)
  2. Legumes
  3. Grains

Deficiency Symptoms

  1. Anemia
  2. Weakened respiration
  3. Digestion
  4. Heart function
  5. Graying of hair

Because (Cu) is needed for iron absorption, insufficient (Cu) also results in iron deficiency.

Needed for Assimilation

  1. Folic acid
  2. Iron
  3. Zinc
  4. Cobalt

Copper absorption is decreased by chronic antacid intake, chronic diarrhea, high dosage of supplemental zinc or vitamin C.

Caution

Additional (Cu) is needed during pregnancy, lactation, and the teenage years. Chelation therapy, burns, and nephrosis tend to cause (Cu) to be lost from the body. The danger is generally too much inorganic copper in the diet, due to water from copper pipes and copper sulfate (added to frozen foods to make them greener, especially peas). Copper is an emetic. As little as 10 mg usually produces nausea; and 60 mg will cause vomiting. Keep (Cu) supplements away from children; 3.5 grams can kill a person. It is estimated that daily consumption of 10-35 mg is continually safe. However, such a high dosage would adversely be affecting absorption and utilization.

Dosage

RDA 2 mg / ODA 3-4 mg / TDA 4-6 mg.

  • Recommended: Normal need is 1.5-3 mg, and therapeutic dosages are 4-6 mg. But needs are generally supplied by a good diet. Supplemental copper intake is keyed to supplemental zinc intake. The best zinc to (Cu) ratio is 10:1 (If 30 mg zinc is taken daily, you should also take 3 mg. copper).

HEALTH DISCLAIMER: The information on this website is for educational uses only and is not a substitute for professional medical advice. Always consult an authorized healthcare provider for any health concerns before using any herbal or natural remedy. We do not establish, treat, cure, or prevent any disease. Reliance on any material from this website is solely at your own risk. We are not responsible for any adverse effects resulting from the use of information or products mentioned on this website.

REFERENCES

Vance Ferrell, Harold M. Cherne, M.D. 2010. The Natural Remedies Encyclopedia. Altamont: Harvestime Books, 2010. pp. 114-115. Vol. Seventh.

Last update on 2025-04-04 / Affiliate links / Images from Amazon Product Advertising API

Donald Rice

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