# OnCo record vital (trial). 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/trials/vital/>
  a schema:MedicalTrial ;
  onco:kind "trial" ;
  schema:identifier "vital", "NCT01169259" ;
  schema:name "VITAL (VITamin D and OmegA-3 TriaL)"@en ;
  schema:description "The definitive test of whether vitamin D or fish-oil pills prevent cancer or heart disease in healthy adults. They did not."@en ;
  schema:url <https://onco.cc/trials/vital/> ;
  schema:dateModified "2026-09-08"^^xsd:date ;
  schema:citation <https://clinicaltrials.gov/study/NCT01169259>, <https://doi.org/10.1056/NEJMoa1809944>, <https://doi.org/10.1056/NEJMoa1809946> ;
  onco:status "negative" ;
  onco:phase "3" ;
  schema:startDate "2010-07" ;
  onco:related <https://onco.cc/ideas/idea-reg-vitamin-d-digestive-cancer-biomarker-trial/> ;
  onco:sections <https://onco.cc/fronts/nutrition-lifestyle/>, <https://onco.cc/fronts/prevention/> ;
  onco:technologies <https://onco.cc/technologies/vitamin-d-omega3-supplementation/>, <https://onco.cc/technologies/chemoprevention/> ;
  onco:terms <https://onco.cc/terms/unproven-diet-claims/>, <https://onco.cc/terms/hazard-ratio/> ;
  onco:bottlenecks <https://onco.cc/bottlenecks/b-negative-results/>, <https://onco.cc/bottlenecks/b-misinformation/> ;
  onco:keyPapers <https://onco.cc/key-papers/paper-manson-n-engl-j-med/> .