what form of calcium and magnesium (and dosage) is recommended with 5000 IU daily of D3?
Any time I think I am low on something, I will take 10x the amount recommended for a week.
I usually get the ones in a green bottle “Natures Way” or something like that.. they seem to be good. Quality does vary.
K2 or you won’t properly absorb the D3 or the Ca.
Mg...some will give you lose stools, so check which works for you