I am still working on it. Was taking Magnesium oxide, but then recently things changed up and I added Magnesium Glycinate, although at first it helped, but not helping. I still take the Oxide with that. Trying to find affordable solutions. Still waking up with Charlie horses almost every night. Not just waking up, but have to stand up from bed, as they do not stop.

https://www.health.com/types-of-magnesium-7853312

People keep telling me to drink pickle juice for charley horses, haven't tried it yet.

I've been putting magnesium lotion on my feet before going to bed at night, helping me with sleeping.

ETA; your body will absorb as much magnesium as needed without over doing it.

When i was in track in high school, i used to get those cramps. My coach had me take potassium. I used the celtic salt and ate extra bananas and it helped. I stopped having them after a couple of weeks, but they lessened each day until they were gone. Also he taught me to pull my toes towards my knee even though it hurts like heck and it will make them pass faster.