Magnesium is absolutely great for cramps, though I take it daily...was hard to hear all Specialists say it wont help mine at all...as the damage from chemo shrunk the sheath over all the muscles and theres only so much that a supplement can do. My damage is irreversible, and suffer body cramping and I mean everywhere randomly.
I don't like taking medication really, but what I take I researched and is absolutely bare minimum. Unfortunately taking 1 thing leads to another problem lol. Im for simplicity when it comes to treating side effects now. :)