When my dog was in her 1st year she started eating her stools. I tried the additive and it did not stop her for a second. The only thing that finally worked was to put on the electric collar. I would let her out and as soon as I saw her tongue heading for a pile, I would give her a blast with the collar. Only had to do it twice before she would not even go near a pile again, and I have not had any trouble since. It has been two years.