# OnCo record selenium-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/selenium-supplements/>
  a schema:MedicalTherapy ;
  onco:kind "technology" ;
  schema:identifier "selenium-supplements" ;
  schema:name "Selenium supplements"@en ;
  schema:alternateName "Selenite"@en, "Selenomethionine"@en, "Selenate"@en ;
  schema:description "Selenium is an essential trace mineral sold to prevent cancer. The large SELECT trial found it did not prevent prostate cancer or bowel polyps, other studies suggest long-term use may raise the risk of some skin cancers and of dying from prostate cancer, and overdoses have killed."@en ;
  schema:url <https://onco.cc/technologies/selenium-supplements/> ;
  schema:dateModified "2026-11-04"^^xsd:date ;
  schema:citation <https://www.mskcc.org/cancer-care/integrative-medicine/herbs/selenium>, <https://www.cancer.gov/about-cancer/treatment/cam/hp/prostate-supplements-pdq> ;
  onco:status "negative" ;
  onco:tag "complementary", "supportive-care", "evidence:no-benefit" ;
  onco:related <https://onco.cc/technologies/lycopene/>, <https://onco.cc/technologies/coenzyme-q10/> ;
  onco:cancers <https://onco.cc/cancers/prostate/>, <https://onco.cc/cancers/colorectal/>, <https://onco.cc/cancers/nsclc/> ;
  onco:sections <https://onco.cc/fronts/supportive-care/>, <https://onco.cc/fronts/prevention/>, <https://onco.cc/fronts/nutrition-lifestyle/> ;
  onco:technologies <https://onco.cc/technologies/integrative-oncology/>, <https://onco.cc/technologies/chemoprevention/>, <https://onco.cc/technologies/dietary-supplements-treatment-interactions/> ;
  onco:bottlenecks <https://onco.cc/bottlenecks/b-misinformation/> .