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And then it went away when I started it again. It was better then a drug â¦ and no side affects! (Later, I found out that the sourse cause of the heartburn was a simple vitamine C tablet that I had also been taking.) Just one more thing. John Lee, M.D. also said that magnesium deficiency can cause leg cramps.
Causes of Leg spasm. This section discusses 8 medical conditions causing Leg spasm. A simple discussion of these causes with additional information is below. The following medical conditions are some of the possible causes of Leg spasm. There are likely to be other possible causes, so ask your doctor about your symptoms. 1  Muscle injury. 2  Nerve irritation. 3  Nummular eczema. 4  Nerve compression. 5  Hypocalcaemia. 6  Electrolyte abnormality. 7  Sciatica. 8  Leg injury.