I hesitated to post this but I know how much many of our members love their furry friends and I feel I should put this warning out there. We've had a lot on our plate recently. On impulse we bought Purina Busy Bones as a "treat" for our dogs. Something different for a change! It's Purina! It's got to be ok! We feed their Pro Plan (not anymore!) They "care" about animals. (Said now with serious sarcasm) We really never buy bones like this because we have real cow bones to give. Lesson learned. Our dogs eat a lot of "stuff" on the ranch and have never had a gut problem before. Cast iron guts we always say. We ended up having to rush one of them to the vet due to extreme vomiting that became bloody VERY quickly. Her abdomen was also bloated and painful. X-rays showed a very strange "mass". Turned out the small pieces she'd chewed off the bone had turned into a mass in her gut. She was violently throwing up and not a piece of it came up. Just her dinner which she had eaten an hour or so after the bone. Trust me on this. After fluids and meds we waited for specialist to consult on the very odd X-rays and her blood results. Sure enough after meds and fluids started working she had diarrhea and chunks of the "bone" came out. (Sorry for the TMI) The chunks weren't even remotely digested. When we looked online we read story after story of dogs with the exact same symptoms/diagnosis and countless dogs dead because of these exact bones. Both from what we experienced and many choking deaths. I've read Purina's responses and they just don't really care. Guess they are making enough money off the lucky people who's dogs don't get sick, and or die from these "treats". Please learn from our very costly mistake! We're devastated to know that we did this to our baby. She is still recovering and we hope she makes a full recovery soon. Her current X-rays show the mass is pretty much gone thanks to carefully planned meals, meds and fluids and only a few small pieces look to still be hanging around. I expect the next X-rays will be clear. We hope.