Low levels of magnesium support development of atrial fibrillation

Low Serum Magnesium and the Development of Atrial Fibrillation in the Community

In the Framingham Offspring Study, researchers have discovered that low magnesium levels in the blood serum lead to increased atrial fibrillation. 3,530 men and women with a mean age of 44 years participated in this study. Further details can be found in the study.
An irregular heartbeat or “arrhythmia” is an abnormal heart rhythm, caused by problems with the heart's electrical conduction system. Arrhythmia occurs when the heart beats too fast (tachycardia), too slow (bradycardia) or with a skipping rhythm. Arrhythmias can be caused by a heart attack or other (organic) damage to the heart muscle. The most frequent cause of arrhythmia, however, is a chronic deficiency of micronutrients in the billions of heart muscle cells. If this deficiency comprises the specialized “electrical” heart muscle cells that either generate (e.g. sinus node) or conduct the electrical impulse for the heartbeat, they no longer function properly and arrhythmia occurs.
Khan AM, Lubitz SA, Sullivan LM, Sun JX, Levy D, Vasan RS, Magnani JW, Ellinor PT, Benjamin EJ, Wang TJ. Low serum magnesium and the development of atrial fibrillation in the community: the Framingham Heart Study. Circulation. 2013 Jan 1;127(1):33-8.

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