Keeping this definition of elemental magnesium in mind, many people do not even get the RDA of 350 mg of magnesium daily. A therapeutic dosage could easily run between 400 mg and 1000 mg daily of elemental magnesium in divided doses. In people with normal kidneys, it is difficult to reach toxic levels of magnesium. However, too much oral magnesium will result in diarrhea. Recall that milk of magnesia is a laxative containing a magnesium salt. Patients suffering from chronic kidney failure must be much more careful because their kidneys have difficulty eliminating magnesium and a toxic buildup may occur. Toxic levels of magnesium may lead to depression of the entire nervous system and even coma and death. But, this is extraordinarily rare and occurs only in patients with severe kidney function impairment. In general, magnesium doses of 1000 mg per day or less are extremely safe.
Magnesium Supplementation for Various Medical Disorders
Oral magnesium supplementation may be helpful to a wide variety of medical disorders including: high blood pressure, asthma, angina pectoris, coronary artery disease, cardiac arrhythmias, chronic fatigue syndrome, all types of musculoskeletal disorders, epilepsy, mitral valve prolapse, anxiety, panic disorder and many other medical and psychiatric conditions.
For many conditions, such as acute heart attacks, magnesium given by either an intramuscular injection or as an intravenous drip, is the preferred method of treatment. Studies show it reduces the death rate and complications of acute heart attacks. In spite of its low cost or perhaps as a result of its low cost, it is not yet given routinely to heart attack victims. Other patients, such as those suffering from chronic fatigue syndrome also seem to do better with magnesium given by injection. This may be due to the superior absorption of injectable magnesium or because high concentrations in the body are necessary for maximal therapeutic effects. In our office, we use injectable magnesium extensively, as part of our EDTA chelation bottle, and for many of the conditions I've mentioned previously.
Increased use of oral and injectable magnesium, along with a diet rich in magnesium, should greatly improve therapeutic results for many patients.