Originally posted by finn's mom
Well, that doesn't gross me out, but, does anyone know what they're treated with or anything? I just try to stick to all natural with Finn...I've never given him anything to chew on that is eventually edible.
I found this from another forum:

"From what I understand/been told; bullysticks are smoked to dry them out.There are no additives or chemicals."

As far as I know, they're completely digestible. I refuse to give raw hide to my dogs because of all the chemicals but I do give them bully sticks every now and then. They go nuts for it! (No pun intended )

One of their last Christmas presents was a 24 inch bully stick. They were very happy pups.