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The Link Between Copper and Nutrition. What does copper do? Possible benefits of copper. Copper and cancer. Copper bracelets. Where do you get copper?
When you might need copper supplements. Copper deficiency. Copper toxicity. The takeaway. Read this next. What to Know About Copper Toxicity. Medically reviewed by Shilpa Amin, M. Risk-benefit analysis of mineral intakes: case studies on copper and iron. Proc Nutr Soc ; Impact of copper deficiency in humans. Ann N Y Acad Sci ; Micronutrient deficiencies in patients with typical and atypical celiac disease.
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Associations of dietary and serum copper with inflammation, oxidative stress, and metabolic variables in adults. J Nutr ; Serum copper concentration and coronary heart disease among US adults. Am J Epidemiol ; Copper, ceruloplasmin, and long-term cardiovascular and total mortality the Ludwigshafen Risk and Cardiovascular Health Study. Free Radic Res ; A randomized trial of copper supplementation effects on blood copper enzyme activities and parameters related to cardiovascular health.
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Med Hypotheses ; J Alzheimers Dis ; Curr Med Chem ; Longitudinal analysis of serum copper and ceruloplasmin in Alzheimer's disease. Dietary copper and high saturated and trans fat intakes associated with cognitive decline.
Arch Neurol ; Meta-analysis of serum non-ceruloplasmin copper in Alzheimer's disease. Copper in Alzheimer's disease: a meta-analysis of serum,plasma, and cerebrospinal fluid studies.
Intake of copper has no effect on cognition in patients with mild Alzheimer's disease: a pilot phase 2 clinical trial. J Neural Transm Vienna ; Dietary and lifestyle guidelines for the prevention of Alzheimer's disease. Neurobiol Aging ;35 Suppl 2:S Copper in Drinking Water. People with chronically low copper levels may have a greater risk of developing high cholesterol and chronic inflammation.
They also may have higher blood sugar levels linked to glucose intolerance , with symptoms similar to diabetes, as well as oxidative stress , damage to cells associated with several health issues. Each of these are risk factors for cardiovascular disease. Low copper levels and intake have been shown to result in neutropenia.
This means the body is making too few neutrophils , a type of white blood cell. Neutrophils, like other white blood cells, are produced by stem cells in your bone marrow.
But if your stem cells don't make enough, your immune system can become weak. This places you more at-risk for bacterial infection. Because copper promotes neutrophil production and has antibacterial properties, keeping up your body's copper levels is vital to keeping a strong immune system.
Severely low copper levels may be linked to a greater risk of decreased bone density. This can progress to osteopenia , which weakens bones. It may also lead to osteoporosis , which can cause bones to become weak enough to break. Low copper levels are linked with heart health issues and can lower the number of a certain kind of white blood cell, which can impact immunity.
More research needs to be done to find out if low levels of copper alone may affect bone health and if supplements can help manage bone loss. Collagen is one of your body's main structural components. It's found in your muscles, bones, blood vessels, skin, organs, and many other places in the body. Collagen acts as a kind of super glue that holds your body together. If your body doesn't have enough collagen, you can develop problems with your joints. The connective tissues that support, protect, and transport nutrients through your body can start to break down.
Sufficient levels of copper help the body replace these damaged tissues. And, since copper has antioxidant properties, researchers think it may help prevent skin aging by limiting the damage from free radicals to help boost collagen growth. On top of that, researchers have found evidence that copper helps keep your skin elastic and could potentially be used to reduce wrinkles and fine lines.
Copper plays a role in brain development and cognitive function. It helps keep hormones in your brain balanced and is needed to make chemical messengers called neurotransmitters. That said, too much copper can have a harmful impact on brain health and cause cognitive decline. Some research also suggests that Alzheimer's disease is associated with copper buildup in the brain.
Copper can help promote a healthy brain and help build and maintain healthy tissues throughout your body. In normal amounts, copper is not linked with any risks or side effects. But as with many vitamins and minerals, having too much copper in your system can be harmful.
Copper toxicity is rare, though it can happen if you eat too much copper day after day for a long period of time. Copper toxicity can also occur in people with Wilson's disease, an inherited disorder that causes copper to build up in the liver, brain, and other organs.
Some symptoms of copper toxicity include:. More serious symptoms of copper toxicity may include:. Anyone thinking about a copper supplement should first check with a healthcare provider.
Eating more than that on a regular basis can be toxic. To give you an idea of how much this is, there are mcg of copper in one ounce of cashews about 16 to 18 nuts. Good dietary sources of copper come from such foods as beef, oysters, potatoes, and others.
Supplements should only be used on the advice of a healthcare provider. If you need one, be sure to buy from a reputable provider. Additional copper can come from drinking water from copper pipes, using copper cookware, and eating farm products sprayed with copper-containing chemicals.
Copper may be decreased in foods that have high acid content and are stored in tin cans for a long time. However, normal daily recommended intakes are generally defined as follows:. All rights reserved. Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes. Mayo Clinic does not endorse companies or products.
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