darienx19, I experience the same thing. Every single conversation goes that way.
When you talk about eliminating grains and sugar, it's like talking to an addict. You either get the concession that yeah, he really should give it up, BUT..., or the patronizing smile while underneath he sees no reason to give up something that makes him feel so good, regardless of the health consequences, or utter incomprehension, as though his addiction were necessary for him to go on living. I've seen that level of addiction to sugar.
Maybe I will start up a sugar detox center. I just have to wait for Mark to appear on Oprah, wait for the message to ferment, then set up shop in Hollywood!
You lousy kids! Get off my savannah!