Does dietary counseling improve quality of life in cancer patients? A systematic review and meta-analysis

J Support Oncol. May-Jun 2008;6(5):234-7.


Results have been mixed as to whether dietary counseling improves clinical outcomes in cancer patients. This systematic review and meta-analysis of randomized trials assessed the effect of dietary counseling on quality of life (QOL). It included only randomized trials that focused on dietary counseling and that relied upon a standardized QOL measurement. Five trials that met these and all other a priori eligibility criteria were identified; they are the focus of this meta-analysis. When these five studies were examined in aggregate, the standardized mean difference in QOL scores among patients who received dietary counseling was 0.56 (95% confidence interval,-0.01-1.14; P = 0.06). Dietary counseling does not appear to improve QOL significantly in patients with cancer. However,an observed trend toward benefit underscores the need for further study.

Publication types

  • Meta-Analysis
  • Review
  • Systematic Review

MeSH terms

  • Counseling*
  • Diet*
  • Humans
  • Neoplasms / diet therapy
  • Neoplasms / therapy*
  • Quality of Life*
  • Randomized Controlled Trials as Topic
  • Sickness Impact Profile
  • Weight Loss