I'm not sure what brand you are using, but the Merrick brand is made for chewing not eating. Joey loves these, and chews on it constantly, but it takes a week to go through a 6 inch stick, so when that's gone I give him another. The hardness is similar to a bone, and I believe this is what helps scrape the teeth. It sounds like your sticks are much softer, and they are using them more as a food source. |