The calcium is a supplement is always combined with other compounds, such as carbonate or citrate.
Elemental calcium is the actual amount of the mineral in the supplement.
As the label does not always state the amount of elemental calcium in a supplement, it is best to clarify with a doctor or a pharmacist before buying.
Dietitian said calcium carbonate supplements are more common here than calcium citrate ones.
Those with reduced levels of stomach acid due to gastrointestinal problems, for instance, may find it easier to absorb calcium citrate. Calcium supplements may cause constipation in some people. This can be relieved by increasing one's fluid and fibre intake.
Calcium interacts with certain substances. For instance, calcium interferes with the absorption of iron. Hence, it is best to take iron and calcium supplements two hours apart.
Calcium also interferes with the absorption of certain antibiotics such as tetracycline.
Those on the antibiotic should take the calcium supplement or eat calcium-rich foods two hours before or after taking tetracycline.
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