A
meta-analysis (a study that pools the results of many
studies) found that the intake of whole grain was
associated with a lower risk of:
Bowel cancer
Stomach cancer
Endometrial cancer.
Reference
Jacobs DR, Marquart L Jr. Slavin J, Kushi LH. Whole-grain intake and
cancer: An expanded review and meta analysis. Nutrition and cancer 1998;
30:85-96.