Magnesium Chloride treats magnesium deficiency in the body and heart-related diseases. 1.Magnesium deficiency. Dietary or metabolic abnormalities may lead to magnesium deficiency. On the one hand, it may cause abnormal activation of enzyme system in the body leading to indigestion, on the other hand, the decline of magnesium ions in the blood serum may lead to muscle twitching and spasms, etc. The above symptoms can be treated with magnesium chloride. 2. Heart disease. If the lack of magnesium ions in the body, it will cause disorders of ion transmission and electrophysiology of the heart, which may cause premature beats, atrial fibrillation, ventricular fibrillation and so on, all of which can be treated with magnesium chloride. It is recommended to use the medicine under the guidance of the doctor.