From what I have read on here we should be taking supplements of:
1000mg Calcium
500mg Magnesium
500mg Potassium

There are threads on this in the newbies questions, but I dont know how to attach them....

I found a cal/mag with 2:1 ratio 500mg cal and 250mg mag, so only need to take 2 per day. Someone told me they have 500mg tablets, but I am still looking for them.

Potassium is found in alot of foods, so dont think you need to take any more than 500mg in tablets.

Akiwican