I have been giving my dogs, Scruffy Tiger ( 9 yrs) and Sparkie (8 yrs), the MaroSnacks for years. When I leave the house to go to work, all I have to say is "Cookies" and stay out of the way. They run to the kitchen and sit by the counter where they Marosnacks are kept. I don't even have them out of the box and they are already "sitting up pretty". My vet cannot believe what good shape their teeth are in.