You may have red or pink-colored stool from eating certain foods
such as beets, rhubarb, radishes and turnips, as they are all red or
pink in color. Red food dyes and food coloring can also cause your
stool to become a shade of red or pink. A red or pink stool may
also be an indication of the presence of blood. If you suspect blood
in your stool, consult with your physician right away. This could
indicate a serious medical condition that requires prompt
treatment.