Corn Question

A certain friend of mine, who we’ll call my schmister, Schmisten, has a tiny issue with corn in her poop.  She claims she can’t eat corn because she doesn’t digest it at all, as she always finds it in tact in her poop.  I know this a common occurrence, but I have not seen a single kernel of corn in my poop in at least three years now.  It is because I chew my food.  I take my time, as nature intended it, and therefore, don’t have a corn-poop problem.  Would somebody please explain to her that chewing is a natural thing?