Magnesium effects on cardiac system

Magnesium plays a major role in vascular health. All risk factors for cardiovascular diseases (hypertension, high total cholesterol, high homocysteine, high C-reactive protein) can be result of low Magnesium status. Recent studies have shown that anxiety and/or depression (well documented symptoms of Mg deficiency) can predict heart disease very precisely.

As a co-factor Mg provides much needed ATP energy for heart muscle cells and its levels affect cardiac excitability, contraction, and conduction. Low Mg : High Ca in blood vessel muscle cells cause them to contract, resulting e.g. in high blood pressure - Magnesium rules! - Its levels determine vasoconstriction or vasodilation. Sufficient Mg levels inside muscle cells, produce a relaxing or vasodilating effect and insufficient Mg concentrations inside muscle cells is vasoconstricting!

Magnesium protects the vascular system from negative effects of excess calcium by blocking calcium entry into the body tissue of the heart- & smooth vascular muscle cells and does naturally equilibrating blood pressure in arteries AND veins. Magnesium acts as an anti-arrhythmic agent as well. It limits intracellular calcium overload triggered during myocardial ischemia. Imbalance of Mg, Ca and K can cause cardiac arrhythmia.
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