Diet and colorectal cancer: Review of the evidence.Can Fam Physician 2007; 53(11):1913-20CF
To investigate whether diet has a role in the development and progression of colorectal cancer (CRC).
QUALITY OF EVIDENCE
MEDLINE was searched from January 1966 to December 2006 for articles on the relationship between diet and CRC using the key words colorectal cancer and folic acid, calcium, vitamin D, red meat, or fibre. Evidence that these factors are associated with CRC came from case-control and prospective cohort studies and some clinical trials.
Before dispensing dietary advice, physicians should understand the potential benefits and harm of specific components of various foods. People might be able to reduce their risk of CRC by increasing their vitamin and mineral levels through eating more vegetables and fruit. Multivitamin and mineral supplements can complement a healthy diet.