What do we do when our dog eats poop? My dog seams to love the horse poop. She doesn't eat any other poop, although I hear there is some who enjoy other goose and rabit poop. My friends dog loves to eat other dog poop. I've heard it is from a lack of something in there diet. I spend so much money on my dog's -dog food, she eats better than I do. What could she be lacking?