Years ago We had a 'Sounder' a Springer Spaniel we just fed him the cheap stuff ( it has Fill'ers Wood fibers!) He ate like a horse! and well Booped like one too! the yard upkeep was hard. When he got older I Was told by a VET to Feed him better Food! He would Eat Less And Boop Less Because NO Wood in the Food!! Better Food !! is the best way to go!
Note: after We changed his food I saw that He was only eating 2x a day and booing 2x a day also.