A study headed by the United States Department of Agriculture Agricultural Research Service found Kellogg's® All Bran® to be a more effective form of wheat bran fiber in reducing the risk of developing colon cancer than unprocessed (raw) wheat bran. Human and animal studies consistently have associated consumption of wheat bran fiber with decreased risk of colon cancer. This study suggested the efficacy of wheat bran in preventing colon cancer is enhanced when it is processed into ready-to-eat cereals when compared to unprocessed wheat bran.
The study measured the number of aberrant crypt foci (ACF) cells, a type of cell linked to colon cancer, in the colons of laboratory rats where the source of wheat bran was the variable factor. The numbers of ACF cells were significantly lower, more than 30%, in the rats fed Kellogg's All-Bran versus those fed unprocessed wheat bran.
Colon cancer is a major public health problem claiming the lives of nearly 55,000 men and women annually. The disease ranks second only to lung cancer as a cause of cancer death in the United States.