yeah, there are lots of warnings on here about greenies. I have fed them to my boys, and I never had any issues (thank goodness), but I have stopped feeding them. With it being such a common thing on here, I figured better safe than sorry. Those things are too expensive, anyways. I know the same cautions are out there about rawhides, but we give the boys those little twisty rawhide stick things...hope that makes sense, haha