| | Calcium - coral, citrate, etc
After being diagnosed with osteopenia (low bone density), my doctor said I should supplement with 1500 mg calcium / 400 vitamin d per day. The doc said any kind of calcium would do. I've been taking calcium citrate tablets which provide 630 mg of calcium and 400 vitamin d. This is in two tablets. I take them morning and night, so am getting 1260 mg calcium and 800 mg vitamin d per day, plus whatever I get from foods, etc.
Today I went to a vitamin store and talked to the salesperson about the calcium tablets. She said:
a) It's pointless to take more than 500 mg of calcium at a time because your body can't absorb more than 500 at a time. She said I should take 500 mg 3 times a day. Is this true?
b) That coral calcium is absorbed better into the body than calcium citrate, and that calcium citrate is absorbed better than calcium carbonate. So, to get the maximum amount of calcium from supplements, I should take coral calcium. Is this true?