# OnCo record coral-calcium (technology). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)". Whole corpus: https://onco.cc/api/v1/onco.nt
@prefix schema: <https://schema.org/> .
@prefix onco: <https://onco.cc/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://onco.cc/technologies/coral-calcium/>
  a schema:MedicalTherapy ;
  onco:kind "technology" ;
  schema:identifier "coral-calcium" ;
  schema:name "Coral calcium"@en ;
  schema:alternateName "Okinawa coral calcium"@en, "Coral calcium hydride"@en ;
  schema:description "Coral calcium was advertised as a cure for cancer and as the secret of long life in Okinawa. There is no evidence it has anticancer effects, the US Federal Trade Commission has banned such claims, and one product tested contained too much lead. As a calcium source it behaves like other calcium supplements but costs more."@en ;
  schema:url <https://onco.cc/technologies/coral-calcium/> ;
  schema:dateModified "2026-11-04"^^xsd:date ;
  schema:citation <https://www.mskcc.org/cancer-care/integrative-medicine/herbs/coral-calcium> ;
  onco:status "negative" ;
  onco:tag "complementary", "supportive-care", "evidence:insufficient" ;
  onco:related <https://onco.cc/technologies/calcium-supplements/>, <https://onco.cc/technologies/germanium-supplements/> ;
  onco:sections <https://onco.cc/fronts/supportive-care/> ;
  onco:technologies <https://onco.cc/technologies/alternative-medicine-instead-of-treatment/>, <https://onco.cc/technologies/integrative-oncology/> ;
  onco:terms <https://onco.cc/terms/unproven-diet-claims/> ;
  onco:bottlenecks <https://onco.cc/bottlenecks/b-misinformation/> .