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Coral (calcium carbonate matrix) is derived form coral exoskeletons. The structure of coral is similar to that of cancellous (spongy) bone. Coral is used orally as a calcium supplement; to treat multiple sclerosis; and to treat and prevent cancer, heart disease, and other chronic health problems. Coral is used orthopedically as a substrate for growing new bone in areas damaged by trauma, maxillofacial reconstruction, cosmetic facial surgery, and damaged weight-bearing bones.

Also known as:  Calcium Carbonate Matrix, Calcium de Corail, Corail, Corail de Mer, Corail Marin, Coral Calcium, Coralline Hydroxyapatite, Espèce Goniopora, Espèce Madrepora, Marine Coral, Matrice de Carbonate de Calcium, Sea Coral

Diseases and Conditions

Coral is likely effective as a bone substitute. Coral has been used in place of allographic or autographic bone for spinal fusions and bone tumors, as well as in periodontal, craniofacial, orthopedic, and neurosurgery surgery. There is insufficient reliable evidence available about the effectiveness of coral for other uses.


Coral is likely safe if used surgically as a bone substitute. There is insufficient information on the safety of coral for other purposes, or on children, pregnant, and breastfeeding women. Not much is known on the safety of coral as a supplement, but possible side effects may include exacerbation of renal calculi.

Medication Interactions

There are no known medication interactions for coral.

Supplement and Food Interactions

There are no known supplement, herb, or food interactions for coral.


There is insufficient reliable evidence available to determine a dosage for coral.


Coral is not normally found in foods.

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