Luigi loves his greenies!!! And I will still give them to him. He only gets them when we are able to watch him and thats it. He gets mad when we leave and have to take it away from him. I give him the petites, and one usually lasts him bout 3 days. I think he likes to suck on it or lick it more than eat it!!!!!!!! He is also a very slow eater. It takes him bout 1- 1 1/2 hr to eat 1/4 of a cup of food!!!! He is soo silly. He also gets the nylabone brand which he loves also!!!! The nylabone edibles such as turkey flavor or carrot flavor are good too. It takes him 4 or 5 days to finish one of those!!!!!