Hi I could use that info on Coral Calcium. I just bought a three month supply and have taken it for a week. My bowels have improved, but my finger nails are going down hill quickly. They do that when I don't take large amounts of Cal-mag. Use to take Shaklee, but now to exspensive. Looking for a way to save my poor fingure nails. They are thinning quit quickly and then they are just starting to get tender. Soon they will look like they are warped and will hurt. Thank You for any help.