A 35-year-old member asked:
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which is a better calcium supplement: calcium carbonate or calcium citrate? why?

1 doctor answer
Dr. Michael Kleerekoper
50 years experience Endocrinology
Calcium: Not much to choose from. Go to the drug store and look at the several options for calcium. Carefully read the comments on each one and choose the one you think is best for you. Try focusing on the less expensive end.
Answered on Dec 23, 2014

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A 31-year-old member asked:
Dr. Cayce Jehaimi
20 years experience Pediatric Endocrinology
No: No, the only difference is that the former is better taken with food whereas the latter (calcium citrate) can be taken on an empty stomach.
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A 34-year-old member asked:
Dr. David Sneid
40 years experience Endocrinology
Either: Just make sure you take the proper amount to balance with your diet and take 2000 units vitamin d3 as well, citrate is easier to absorb and doesn't ne ... Read More
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A 27-year-old female asked:
Dr. Carlo Hatem
24 years experience Pulmonary Critical Care
No difference: The differences are not significant enough when it comes to clinical results.
A 36-year-old female asked:
Dr. Gurmukh Singh
48 years experience Pathology
A couple of hours: Calcium will start entering circulation in a couple of hours, provided you have sufficient vitamin d in your system.

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