[theBCnut]

Most dogs don’t have a problem with too little fiber. What you may see is him scooting his butt across the floor. They do this when their anal glands are clogged and not releasing when they poop. If the stool is too small, it doesn’t put enough pressure on the glands to release them, so then you would want to add something for bulk. If it isn’t a problem, then it isn’t a problem.