Cramping

Hello, good Docter(s),

I am not sure if this is the correct forum category but here goes. What is/are the main cause(s) of cramping? Specifically, legs cramping. Regardless of my conditioning and hydration I constantly have issues with leg cramping (mainly calves). The only variable, that I can think of, that I have not entirely ruled out is my sodium intake. any advice or resources would be greatly appreciated.

Thank you sir. I will give it a good read.