Answer: It doesn't. At least not professionally. Until this--
30 Rock actor and friend have teamed up to create this mobster short film: Storyline?
Mafia boss gets diagnosed celiac. Crisis. What happens to spaghetti, cannoli, minestrone, lasagna, PIZZA? Mamma mia! and less appropriate exclamations.
At last, a professional movie project that -- tongue-in-cheek -- approaches the pitfalls of celiac disease.
Support the project, and get it rolling!
...and watch the appeal trailer: it's sidesplitting.