# OnCo record germanium-supplements (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/germanium-supplements/>
  a schema:MedicalTherapy ;
  onco:kind "technology" ;
  schema:identifier "germanium-supplements" ;
  schema:name "Germanium supplements (Ge-132, 'vitamin O')"@en ;
  schema:alternateName "Germanium sesquioxide"@en, "Ge-132"@en, "Organic germanium"@en, "Spirogermanium"@en ;
  schema:description "Germanium is a mineral used in electronics that is sold as a supplement to fight cancer. There is no good evidence it works, and it causes kidney, liver and nerve damage, even at low doses, so Memorial Sloan Kettering advises that it should not be used at all."@en ;
  schema:url <https://onco.cc/technologies/germanium-supplements/> ;
  schema:dateModified "2026-11-04"^^xsd:date ;
  schema:citation <https://www.mskcc.org/cancer-care/integrative-medicine/herbs/germanium> ;
  onco:status "negative" ;
  onco:tag "complementary", "supportive-care", "evidence:harm" ;
  onco:related <https://onco.cc/technologies/colloidal-silver/>, <https://onco.cc/technologies/coral-calcium/> ;
  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/> .