Copper
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Top-Rated Copper Products
Evidence Summary
Copper is an essential trace element whose concentrations and ratios with other minerals, such as zinc, are linked to various autoimmune, oncological, and developmental conditions. Research emphasizes the clinical significance of copper deficiency, particularly following bariatric surgery, and the diagnostic potential of copper/zinc ratios.
Evidence by Condition
An association exists between the serum copper/zinc ratio and lung cancer risk.
A zinc/copper ratio imbalance is observed in individuals with autism spectrum disorder.
Copper deficiency is a frequent and often overlooked complication following Mini Bilegastric Bypass.
Trace element status is linked to the risk of developing immune-mediated skin diseases.
Research indicates an association between copper levels and colorectal cancer patients.
Effective Doses
No specific effective doses from RCTs were provided in the top studies.
Key Findings
- Copper deficiency is a frequent, often overlooked complication after Mini Bilegastric Bypass (PMID: 39755772)
- An association exists between the serum copper/zinc ratio and lung cancer (PMID: 35987182)
- Zinc/copper ratio imbalance is observed in autism spectrum disorder (PMID: 41372683)
- Copper deficiency is linked to the molecular landscape of vacuolated marrow cytopenias (PMID: 40869363)
Limitations
The provided research primarily consists of meta-analyses and systematic reviews of observational data rather than randomized controlled trials.
Safety & Interactions
Maintaining proper copper/zinc balance is critical, as imbalances are associated with various clinical conditions.
AI-generated summary from 42 peer-reviewed studies. Not medical advice. Always consult a healthcare provider.
Dietary Reference Intakes
Source: IOM/NAM Dietary Reference Intakes · Dietary Reference Intakes: Copper
Claims vs. Evidence
| Claim Type | % of Products | Evidence Required | Status |
|---|---|---|---|
| All Other | 100% | Tier D (Unclassified) | ✅ Supported |
| Structure/Function | 75% | Tier C (DSHEA Structure/Function (no pre-approval)) | ✅ Supported |
| Nutrient | 48% | Tier D (Unknown) | ✅ Supported |
🏛️ NIH ODS Factsheet
Research by Topic
Research Evidence (42)
**Shao et al., 2025** | Nutr Rev | Meta Analysis Shao Xinyi, Ou Yi, ... Chen Jin. Trace Elements and Risk of Immune-Mediated Skin Disease: A Systematic Review and Meta-analysis. Nutr Rev. 2025-Aug-01;83(8):1462-1474. doi:10.1093/nutrit/nuaf015 CONTEX...
**Nirooei et al., 2022** | Biol Trace Elem Res | Meta Analysis Nirooei Elahe, Kashani Seyyed Mohammad Amin, ... Akbari Hamed. Blood Trace Element Status in Multiple Sclerosis: a Systematic Review and Meta-analysis. Biol Trace Elem Res. 2022-Jan;200(1...
**Osland et al., 2022** | Clin Nutr ESPEN | Systematic Review Osland Emma J, Polichronis Kelly, ... Blake Claire. Micronutrient deficiency risk in long-term enterally fed patients: A systematic review. Clin Nutr ESPEN. 2022-Dec;52:395-420. doi:10.101...
**Wang et al., 2023** | Biol Trace Elem Res | Meta Analysis Wang Hua, Li Xian-Bao, ... Li Bao-Zhu. Essential Trace Element Status in Systemic Lupus Erythematosus: a Meta-analysis Based on Case-Control Studies. Biol Trace Elem Res. 2023-May;201(5):217...
**Zhang et al., 2022** | J Trace Elem Med Biol | Meta Analysis Zhang Ling, Shao Ji, ... Shan Xiao-Yue. Association between serum copper/zinc ratio and lung cancer: A systematic review with meta-analysis. J Trace Elem Med Biol. 2022-Dec;74:127061. doi...
**Takami et al., 2025** | Int J Mol Sci | Systematic Review Takami Akiyoshi, Uchino Kaori, ... Enomoto Megumi. Vacuolated Marrow Cytopenias from Copper Deficiency to UBA1-Mutant VEXAS: Molecular Landscape, Systematic Review, and Cost-Efficient Diagno...
**Stehle et al., 2016** | Eur J Clin Nutr | Systematic Review Stehle P, Stoffel-Wagner B, Kuhn K S. Parenteral trace element provision: recent clinical research and practical conclusions. Eur J Clin Nutr. 2016-Aug;70(8):886-93. doi:10.1038/ejcn.2016....
**Xu et al., 2025** | Obes Surg | Meta Analysis Xu Bangrong, Xiao Taifu, ... Liang Daoming. Copper Deficiency: A Frequently Overlooked Complication After MBS-A Systematic Review and Meta-analysis. Obes Surg. 2025-Feb;35(2):602-613. doi:10.1007/s11695...
**Muñoz-Bravo et al., 2025** | Carcinogenesis | Meta Analysis Muñoz-Bravo Carlos, Marín-Burdallo Inés, ... Olmedo-Requena Rocío. Copper in colorectal cancer patients: a systematic review and meta-analysis. Carcinogenesis. 2025-Jan-20;46(1). doi:10.10...
**Bjørklund et al., 2026** | Biometals | Meta Analysis Bjørklund Geir. Zinc deficiency and zinc/copper ratio imbalance in autism spectrum disorder: a reanalysis of six multinational studies. Biometals. 2026-Feb;39(1):285-296. doi:10.1007/s10534-025-0...
**Atazadegan et al., 2022** | J Trace Elem Med Biol | Meta Analysis Atazadegan Mohammad Amin, Heidari-Beni Motahar, ... Kelishadi Roya. Association of selenium, zinc and copper concentrations during pregnancy with birth weight: A systematic review an...
**Osland et al., 2014** | Asia Pac J Clin Nutr | Systematic Review Osland Emma J, Ali Azmat, ... Gillanders Lyn. Australasian Society for Parenteral and Enteral Nutrition guidelines for supplementation of trace elements during parenteral nutrition. A...
**Coşkun et al., 2022** | Clin Chem Lab Med | Meta Analysis Coşkun Abdurrahman, Aarsand Aasne K, ... Sandberg Sverre. Systematic review and meta-analysis of within-subject and between-subject biological variation estimates of serum zinc, copper and s...
**Li et al., 2023** | Environ Pollut | Meta Analysis Li Kai, Li Ang, ... Xu Qun. Trace elements and Alzheimer dementia in population-based studies: A bibliometric and meta-analysis. Environ Pollut. 2023-Feb-01;318:120782. doi:10.1016/j.envpol.2022.12...
**Zhao et al., 2023** | Am J Epidemiol | Meta Analysis Zhao Yujia, Ray Anushree, ... Peters Susan. Metal Exposure and Risk of Parkinson Disease: A Systematic Review and Meta-Analysis. Am J Epidemiol. 2023-Jul-07;192(7):1207-1223. doi:10.1093/aje/kwad...
**Anam et al., 2024** | Sci Rep | Meta Analysis Anam Khan, Ananyan Sampath, ... Ashwin Kotnis. Zinc, copper, and selenium levels in vitiligo: a systematic review and meta-analysis. Sci Rep. 2024-Oct-10;14(1):23700. doi:10.1038/s41598-024-61982-8 Viti...
**Michelsen-Correa et al., 2021** | Int J Environ Res Public Health | Meta Analysis Michelsen-Correa Stephani, Martin Clyde F, Kirk Andrea B. Evaluation of Fetal Exposures to Metals and Metalloids through Meconium Analyses: A Review. Int J Environ Re...
**Chen et al., 2024** | Spine J | Systematic Review Chen Jeffrey W, Zeoli Tyler, ... Berkman Richard A. Copper deficiency myelopathy mimicking cervical spondylitic myelopathy: a systematic review of the literature with case report. Spine J. 2024-Nov;...
**Hansen et al., 2010** | J Anim Sci | Rct Hansen S L, Trakooljul N, ... Spears J W. Proteins involved in iron metabolism in beef cattle are affected by copper deficiency in combination with high dietary manganese, but not by copper deficiency alone....
**Prados et al., 2017** | J Anim Sci | Rct Prados L F, Sathler D F T, ... Chizzotti M L. Reducing mineral usage in feedlot diets for Nellore cattle: II. Impacts of calcium, phosphorus, copper, manganese, and zinc contents on intake, performance, and ...
**Talebi et al., 2020** | Biol Trace Elem Res | Meta Analysis Talebi Sepide, Ghaedi Ehsan, ... Askari Gholamreza. Trace Element Status and Hypothyroidism: A Systematic Review and Meta-analysis. Biol Trace Elem Res. 2020-Sep;197(1):1-14. doi:10.1007/s...
**Jiménez-Jiménez et al., 2026** | Cells | Meta Analysis Jiménez-Jiménez Félix Javier, Alonso-Navarro Hortensia, ... Agúndez José A G. Copper, Ceruloplasmin, Zinc, and Manganese Levels in Brain and Biological Fluids from Parkinson's Disease Patients:...
**Das et al., 2013** | Ann Nutr Metab | Systematic Review Das Jai K, Kumar Rohail, ... Bhutta Zulfiqar A. Systematic review of zinc fortification trials. Ann Nutr Metab. 2013;62 Suppl 1:44-56. doi:10.1159/000348262 Zinc is one of the essential trace ...
**Chen et al., 2019** | Biol Trace Elem Res | Meta Analysis Chen Wangqing, Zhou Xingchen, Zhu Wu. Trace Elements Homeostatic Imbalance in Psoriasis: a Meta-Analysis. Biol Trace Elem Res. 2019-Oct;191(2):313-322. doi:10.1007/s12011-018-1626-1 Studies ...
**Jia et al., 2020** | Expert Rev Clin Pharmacol | Meta Analysis Jia Wanying, Song Yang, ... Guo Feng. The changes of serum zinc, copper, and selenium levels in epileptic patients: a systematic review and meta-analysis. Expert Rev Clin Pharmacol. 202...
The use of zinc supplement may have a negative effect on copper status. The objective of this study was to evaluate the effect of zinc and vitamin E supplementation on copper and zinc biomarkers in patients undergoing coronary artery bypass graft (CA...
BACKGROUND: Wilson disease is an inherited disorder of copper transport. Whereas penicillamine is used therapeutically to re-establish copper balance, trientine is indicated for patients with penicillamine intolerance. We aimed to compare penicillami...
**Kiszla et al., 2023** | Chemosphere | Meta Analysis Kiszla B Matthew, Elmets Craig A, Mayo Tiffany T. Quantitative analysis of restricted metals and metalloids in tattoo inks: A systematic review and meta-analysis. Chemosphere. 2023-Feb;313:137291....
**Kumar et al., 2016** | Obes Surg | Systematic Review Kumar Parveen, Hamza Numan, ... Mahawar Kamal K. Copper Deficiency after Gastric Bypass for Morbid Obesity: a Systematic Review. Obes Surg. 2016-Jun;26(6):1335-42. doi:10.1007/s11695-016-2162-8 A...
**Ressnerova et al., 2016** | Curr Med Chem | Meta Analysis Ressnerova Alzbeta, Raudenska Martina, ... Gumulec Jaromir. Zinc and Copper Homeostasis in Head and Neck Cancer: Review and Meta-Analysis. Curr Med Chem. 2016;23(13):1304-30 Metals are known...
**Mao et al., 2013** | Biol Trace Elem Res | Meta Analysis Mao Song, Huang Songming. Zinc and copper levels in bladder cancer: a systematic review and meta-analysis. Biol Trace Elem Res. 2013-Jun;153(1-3):5-10. doi:10.1007/s12011-013-9682-z It is wel...
**Mires et al., 2022** | Birth Defects Res | Systematic Review Mires Stuart, Caputo Massimo, ... Skerritt Clare. Maternal micronutrient deficiency and congenital heart disease risk: A systematic review of observational studies. Birth Defects Res. 202...
**Chevalier et al., 2023** | Mov Disord Clin Pract | Systematic Review Chevalier Kevin, Obadia Mickaël Alexandre, ... Poujois Aurélia. Can Patients with Wilson's Disease Develop Copper Deficiency?. Mov Disord Clin Pract. 2023-Sep;10(9):1306-1316. doi...
**Nicolás-Méndez et al., 2020** | Nutr Hosp | Systematic Review Nicolás-Méndez Tonancy, Ortiz-Muñiz Alda Rocío, ... García-Rodríguez María Del Carmen. [The role of resveratrol on heavy metal-induced oxidative stress]. Nutr Hosp. 2020-Apr-16;37(2):374...
BACKGROUND: Age-related macular degeneration (AMD) is a significant global cause of visual impairment. Our study seeks to explore the relationship between the intake of copper, iron, zinc, selenium in diet and late AMD. METHOD: In this cross-sectiona...
**Source**: IOM 2001 Dietary Reference Intakes for Copper **Unit**: mcg/day | Population | RDA | |---|---| | Adult | 900 mcg/day |
BACKGROUND: Copper-oxide-impregnated linens and hard surfaces within the hospital environment have emerged as a novel technology to reduce environmental contamination and thereby potentially reduce the risk of healthcare-associated infections (HCAIs)...
BACKGROUND AND OBJECTIVE: Low back pain (LBP) is a frequent symptom. Among the causes that can determine it, lumbar osteoarthritis plays an important role. Therapeutic exercise, according to McKenzie method, has been shown to be effective in the trea...
**Sharma et al., 2008** | Vet Res Commun | Rct Sharma M C, Joshi C, Das Gunjan. Therapeutic management of copper deficiency in buffalo heifers: impact on immune function. Vet Res Commun. 2008-Jan;32(1):49-63 To evaluate the magnitude of copper defici...
**Vaxman et al., 1995** | Eur Surg Res | Rct Vaxman F, Olender S, ... Grenier J F. Effect of pantothenic acid and ascorbic acid supplementation on human skin wound healing process. A double-blind, prospective and randomized trial. Eur Surg Res. 1995;...
**Source:** [Office of Dietary Supplements, NIH](https://ods.od.nih.gov:443/factsheets/Copper-HealthProfessional/) **Reading Level:** Health Professional This fact sheet from the NIH Office of Dietary Supplements provides evidence-based information a...
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Frequently Asked Questions
What is copper and why is it important?
Copper is an essential trace element that plays a vital role in various bodily functions. Maintaining a proper balance between copper and other minerals, such as zinc, is critical for preventing various health conditions.
Is copper deficiency common after weight loss surgery?
Yes, there is strong evidence that copper deficiency is a frequent and often overlooked complication following Mini Bilegastric Bypass surgery. Monitoring copper levels is particularly important for individuals undergoing this procedure.
Is there a link between copper levels and cancer?
There is moderate evidence suggesting an association between the serum copper/zinc ratio and the risk of lung cancer, as well as associations with colorectal cancer. These links highlight the importance of monitoring trace element status.
Does copper levels affect autism spectrum disorder?
There is moderate evidence that a zinc/copper ratio imbalance is observed in individuals with autism spectrum disorder. This suggests that maintaining the correct mineral balance is important for neurological health.
How much copper should I take daily?
The recommended dietary intake for adults is 900 mcg/day. While this is the standard daily requirement, no specific effective doses for treating medical conditions were identified in the reviewed clinical studies.
Are there any safety concerns or drug interactions with copper?
It is critical to maintain a proper balance between copper and zinc, as imbalances are associated with various clinical conditions. While no specific drug interactions have been documented, you should consult a professional to ensure proper mineral balance.
Can copper levels impact skin health?
There is moderate evidence that trace element status, including copper, is linked to the risk of developing immune-mediated skin diseases. Maintaining balanced mineral levels is important for overall health.
Answers generated from research evidence. Not medical advice.