I agree with the others .... Greenies are like any other treat or item - you MUST watch and control your dog. Dogs can die from eating rawhide, panty hose, rocks, socks, ANYthing.

My sister's dog got the dresser drawer open, after opening the closed bedroom door BTW, and ate about twenty socks. $2,000 of emergency surgeries and two months later, she is fine.

I had a customer who had to rush her dog to the vet at midnight for a likewise costly surgery ... after the dog ate pounds of gravel out the the driveway. They had had the dog, and the gravel driveway, for ten years prior to this with no incident.

My dogs get, and will continue to get, Greenies. And I will continue to watch them while they eat them.