WTF is gluten? Jimmy Kimmel tries to find out in this funny video!

Los Angeles – The latest big health trend thingy is to avoid gluten.

How someone can deliberately cut pizza out of their life is beyond us! But do these health freaks really know what gluten is?

Well Jimmy Kimmel went to find out and caught these hilarious reactions on video.

PS: In case you didn’t know. Gluten (Latin for glue) is a protein composite found in foods processed from wheat.