Magnesium is crucial for regulating the amount of calcium in the blood and in the cells of the body. Magnesium controls how much calcium should be available in the cells for the necessary electrical transmissions. Once calcium does its job, magnesium immediately intervenes and stops excess calcium from causing damage to the cells by way of calcification and hyper-excitability. Calcification in the cells causes many diseases such as heart disease, high blood pressure, asthma, and headache. In this regard, magnesium is a natural calcium channel blocker. We cannot ignore the importance of calcium and magnesium in our bodies because these two minerals always induce a reaction from each other. The growth of human cells, cell division, and intermediary metabolism need magnesium. These processes can be compromised if there are excessive amounts of calcium in the body.
Magnesium disposes of the excessive amounts of calcium in the bloodstream, heart and in the brain. A magnesium deficient body finally ends up with excess calcium deposits, muscle pain, spasm, fibromyalgia, and hardening of the artery walls. A magnesium and calcium balance is vital for the kidneys too. If there is too much calcium, and too little magnesium in the kidneys, the calcium will form kidney stones. An imbalance of magnesium and calcium in the body can result in constricted blood vessels, leading to high blood pressure and possibly to heart attack (Jody, 2008).