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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.
Pain during a muscle spasm can range from mild to severe, and can last up to 10 minutes. Poor circulation in the legs, high or low concentration of sodium or potassium, overexertion of muscles and some medication are among some of the reasons why leg muscle spasms occur.