Go to your pantry or check at your local Supermarket, (ie: read the
packet -- might be difficult for some of you, judging the replies) out
of 5 major brands of corn flour/starch here, only 1 is actually made
from maize.

As for Arrowroot I grow and make my own, if you really want to educate
yourselves the information is all over the web, try using it once in a
while before running off at the mouth.