title: Natural products for cancer prevention.
abstract: OBJECTIVE
  To review the clinical trial literature on the use and effects of natural products for cancer prevention.
  
  
  METHODS
  Clinical trials published in PubMed.
  
  
  CONCLUSIONS
  There is a growing body of literature on the use of natural products for cancer prevention. To date, few trials have demonstrated conclusive benefit. Current guidelines recommend against the use of natural products for cancer prevention.
  
  
  CONCLUSIONS
  Clinicians should ask patients about their use of natural products and motivations for use. If patients are using natural products for cancer prevention, they should be counseled on the current guidelines, as well as their options for other cancer prevention strategies.
authors.affiliation: Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY 10032, USA. hg2120@columbia.edu
authors.forename: Heather
authors.initials: H
authors.lastname: Greenlee
mesh_terms: D001688:Biological Products; D000529:Complementary Therapies; D004044:Dietary Proteins / Q000627:therapeutic use; D006801:Humans; D008903:Minerals / Q000627:therapeutic use; D009369:Neoplasms / Q000451:nursing / Q000517:prevention & control*; D009859:Oncology Nursing / Q000379:methods*; D010946:Plants, Medicinal; D014815:Vitamins / Q000627:therapeutic use
chemical_list: D001688:Biological Products; D004044:Dietary Proteins; D008903:Minerals; D014815:Vitamins