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Magnesium Oxide & Kidneys

by
author image Rose Haney
Rose Haney received her joint doctoral degree in clinical psychology from San Diego State University and University of California, San Diego. Her clinical and research specialties are neuropsychology and neuroimaging. She has been published in several scientific journals and has presented her work at numerous national conferences. She has been freelance writing since 2008.
Magnesium Oxide & Kidneys
Individuals with impaired kidney function are susceptible to hypermagnesmia, a life-threatening condition. Photo Credit Stockbyte/Stockbyte/Getty Images

Magnesium is a mineral your body needs. Because it is involved in more than 300 metabolic reactions, getting your daily requirements is a must. The typical American's diet is sorely lacking in the whole grains and leafy greens that provide this element. Therefore, taking a daily supplement may be required. However, precaution is necessary when you take this supplement, especially if you have kidney problems. As always, consult your physician before you start taking anything new.

Magnesium Oxide

Magnesium oxide, also known as magnesia, is found naturally as periclase, a white solid rock material. When added to water, it is known as milk of magnesia. It can be used for several reasons. According to PubMed Health, in addition to being a dietary supplement, people may use magnesium oxide as an antacid to relieve heartburn and a sour stomach or as a short-term laxative to cleanse the bowels before surgery. It can also be topically applied to canker sores to provide relief. Magnesium oxide can be found in tablet, capsule, or liquid forms.

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Magnesium and Kidney Failure

For individuals with impaired kidney function, magnesium toxicity is a very real possibility. Reduced kidney function can result in the loss of the kidney's ability to remove excess magnesium. This can lead to toxic levels of magnesium or severe hypermagnesmia. Hypermagnesmia can be a problem in individuals who have chronic kidney disease. They often take magnesium containing phosphate binders to manage high phosphorous levels that can occur in patients who regularly receive dialysis. A1982 study reported in the journal "Nephron" showed that uncontrolled hypermagnesmia did not occur in dialysis patients taking magnesium containing binders. However, having increased levels of magnesium is a common occurrence in kidney patients and should always be monitored.

Magnesium and Kidney Stone Formation

In individuals with healthy kidneys, magnesium is reported to reduce the formation of kidney stones by creating an alkaline environment in the body thus inhibiting the formation of calcium-oxalate crystals in the urine. A 2004 study published in the "Journal of the Medical Association of Thailand," reported a significant reduction in the factors that contribute to kidney stone formation. The researchers recommended that individuals at risk for stone formation should be supplemented with both magnesium and potassium together to provide the alkaline environment necessary to reduce stone formation.

Symptoms of Hypermagnesmia

When too much magnesium collects in the body, hypermagnesmia occurs. Symptoms of this condition are low blood pressure, fatigue, confusion, and arrhythmia. As the condition worsens, a person can experience difficulty breathing, muscle weakness, and possible cardiac arrest. If you experience any of these symptoms, or suspect hypermagnesmia, contact your physician immediately.

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References

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