Mom likes to dance, the last few days dancing thighs always cramp, want to ask how to do thigh cramps?

How to do with thigh cramps when dancing, this is no need to be overly nervous, generally middle-aged and elderly leg cramps are mostly caused by a lack of calcium. I sometimes have thigh cramps before, and then specifically buy the gold Calcium Erqi Tim Jia tablets, eat two tablets a day, and then eat some calcium content of food, like milk, shrimp, and so on. Then I went out for a walk every day and got some sunshine. Now basically no leg cramps, feel more energetic when dancing.