Can Copper Cause High Blood Pressure Problems?

Most people can obtain all the copper they need by eating a healthy diet. Good dietary sources of copper include liver, beans and nuts. Dr. Lawrence Wilson has studied copper extensively, and has found that copper plays a major role in energy production and the healthy functioning of the immune, nervous and reproductive systems. On occasion, copper supplements may be recommended for patients who have intestinal disorders, kidney disease or copper deficiency.

A number of medical studies have been conducted on the relationship between copper and high blood pressure, but their conclusions have been contradictory. A study conducted by Dr. Carl Pfeiffer in the late 1980's found that elevated copper levels are linked to high blood pressure, especially in women. The study was not able to determine a definitive explanation for the relationship, but it is thought that copper may alter the heart-protecting production of estrogen in women. However, another study conducted on animals by the Agriculture Research Service found that not eating enough copper can hinder the dilation of blood vessels, which can lead to high blood pressure. Given the contradictory medical evidence, the National Institutes of Health has made no ruling on whether copper supplements can contribute to high blood pressure or other cardiovascular problems.

Many vitamin supplement manufacturers market copper supplements with the claim that copper can help reduce blood pressure. Keep in mind that these claims are not approved by the FDA and should be viewed with a healthy dose of skepticism. Like the study discussed above, some evidence shows a link between copper deficiency and high blood pressure, but that does not automatically mean that copper will reduce blood pressure in those without a copper deficiency.

Ingesting too much copper can be toxic. Large amounts of copper cannot be adequately processed by the body, and can build up in the liver and contribute to liver disease. The U.S. Food and Nutrition Board recommends that adults take no more than 0.9 milligrams of copper per day. Taking more than 10 milligrams per day can lead to copper toxicity. The symptoms of this dangerous condition include nausea, abdominal pain, diarrhea, joint pain and headaches.

Talk to your doctor first before you start taking any vitamin or mineral supplements. Your doctor may prescribe copper supplements because of a medical condition or copper deficiency, but you should not start taking copper supplements without medical advice.