i would say stay away from greenies. i didnt know about them and gave shaymus one thinking like you they would be good for his teeth. well after just one he could not poop.i took him to the vet and she said that she could feel somthing in his colon but she could move it back and forth.so we gave him laxatone for 3 days. and aiso 1 half of a teaspoo of pumpkin 2 times a day.he is fine now. iam still giving him the pumpkin he loves it pattie and shaymus |