Magnesium is one of the body's major electrolytes, essential for metabolism and an aid to the growth of bone as well as nerve and muscle health. Researchers now believe magnesium is responsible for the health of the heart, blood pressure, circulation, and overall relaxation including muscle relaxation. Professional athletes or anyone who engages in heavy physical labor must keep magnesium levels up, as the mineral facilitates oxygen delivery to working muscle tissue.

Magnesium-rich foods include meats, seafood, green vegetables, dairy products, nuts, kidney and lima beans, bananas, peanut butter and potatoes. An association has been observed between magnesium and normal concentration in children. It has been well established that intravenous magnesium supports muscle relaxation.

Magnesium deficiency is extremely rare.  Symptoms of magnesium deficiency include personality changes, nausea, weakness, muscle spasms and tremor. Adequate levels of magnesium are necessary for the heart muscle to beat regularly. Magnesium also helps calcium to be processed by your body. The body's processing of magnesium can also be inhibited by consuming foods high in oxalic acid, like spinach, cocoa, and tea.

Persons with kidney failure must be very careful when taking any food or medication with magnesium because the kidney clears excess magnesium from the body.

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