(RxWiki News) Many studies have shown that certain foods can reduce the risk for colorectal cancer, but those studies have sometimes produced conflicting results. New research suggests that by looking at the location of colorectal cancer, some of these dietary recommendations can make more sense.
The protective effects of fruits and vegetables on colorectal cancer have been debated extensively. Previous researchers never took into account the different types of colorectal cancer: proximal colon, distal colon and rectum. Now, researchers help clarify some of the confusion.
"Eat more fruits and veggies to fight cancer."
Lead investigator Lin Fritschi, Ph.D., professor and head of the Epidemiology Group at Western Australian Institute for Medical Research in Perth, Western Australia, found that certain fruits and vegetables help decrease the risk of specific types of colorectal cancer.
- Brussels sprouts, cabbage, cauliflower, and broccoli can help reduce risk for proximal and distal colon cancer.
- More specifically, apples and dark yellow vegetables help lower distal colon cancer.
- The researchers also found drinking more fruit juice was linked to an increased risk for rectal cancer.
The study included 918 participants who had colorectal cancer and 1021 participants who had no sign or history of colorectal cancer. Each subject was asked to complete medical and nutritional questionnaires.
The case-control study is published in the October issue of the Journal of the American Dietetic Association.