since it has been demonstrated that a high level of fat is a dietary factor in the etiology of colon cancer , the effect of carrageenan , a polysaccharide extracted from the red seaweeds , on 1,2-dimethylhydrazine-induced colonic tumors in rats fed a semipurified control diet containing an ordinary level of fat was studied .
C0007289
carrageenan
C0032594
polysaccharide