young adult rats were fed ad libitum for 4 wk on defined diets containing either no fiber , 10 % levels of insoluble fiber sources [ cellulose , wheat bran , alfalfa , mixed fibers ( fibyrax ) ] , 5 % levels of soluble fiber sources [ pectin , guar gum , psyllium ( metamucil ) ] or 2 % cholestyramine ( questran ) , a bile acid sequestrant .
C0008402
cholestyramine
C0699311
questran