# OnCo record quercetin-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/quercetin-supplements/>
  a schema:MedicalTherapy ;
  onco:kind "technology" ;
  schema:identifier "quercetin-supplements" ;
  schema:name "Quercetin supplements"@en ;
  schema:alternateName "Quercetin"@en ;
  schema:description "Quercetin is a flavonoid found in apples, onions and tea, sold as an antioxidant and anti-cancer supplement. There is no human evidence that it treats or prevents cancer, it made oestrogen-driven breast tumours worse in mice, and it may raise levels of some drugs, including tamoxifen in laboratory studies and warfarin in one patient."@en ;
  schema:url <https://onco.cc/technologies/quercetin-supplements/> ;
  schema:dateModified "2026-11-04"^^xsd:date ;
  schema:citation <https://www.mskcc.org/cancer-care/integrative-medicine/herbs/quercetin> ;
  onco:status "phase-2" ;
  onco:tag "complementary", "supportive-care", "evidence:insufficient" ;
  onco:related <https://onco.cc/technologies/resveratrol-supplements/>, <https://onco.cc/technologies/flaxseed-supplements/> ;
  onco:sections <https://onco.cc/fronts/supportive-care/>, <https://onco.cc/fronts/nutrition-lifestyle/> ;
  onco:technologies <https://onco.cc/technologies/integrative-oncology/>, <https://onco.cc/technologies/dietary-supplements-treatment-interactions/> ;
  onco:drugs <https://onco.cc/drugs/tamoxifen/> ;
  onco:terms <https://onco.cc/terms/unproven-diet-claims/> ;
  onco:bottlenecks <https://onco.cc/bottlenecks/b-misinformation/> .