Mrs. Kramden,
As a midwife I recommend a certain brand, and take that myself. I have done experiments in disolving to determine the best calcium/magnisium that disolves quickly. What I found after this research, which included speaking with many other midwives around Texas, is a brand called "KAL" brand. You can get it at a whole foods type store, a GNC type store may not have this brand. Here in Texas I must go to a whole foods market like Sun Harvest, I don't know if you have them there.
Anyway, these softgel caps have 1000mg calcium/500mg magnisium, and also contain Zinc & D. I personally take 3 a day, 1 in the am (calcium can make you drowsy, it relaxes muscles too, so it can help with pain) and 2 at night. That is just me, 1000mg really isn't enough even for someone who is not going through menopause, just my opinion of course

. I know pregnant women need the extra dose, so theoritcally, menopauseal women who are also hormonally comprimised do as well. By the way, this is the reccomended dose by my mentor midwives.
As I mentioned they are softgels, so the absorbtion rate is just incredibly fast! I can actually feel them going to work for me. Last year is when I started this regimin and at that time I was suffering from excrutiating hip joint pain, after just 2 weeks, this pain had reduced by more than half, and then as more time went by it reduced even further. With the potential bone density loss menopause can bring, taking this regularly will help so much. Also, you will gain other benifits, it has helped somewhat with my hair loss and nail growth.
I hope this helps, I am glad your going to get on this supplement, to me if I was going to make sure I didn't skip one supplement, as the most important one needed it would be my KAL brand calcium/magnisium Zinc & D. It's not any more expensive either.
Ok, now that I sound like a sales rep for them...... I just really believe in this one from experiences with it!!
Kari Anne