I had a pony that had loose stools all the time not only loose, but very stinky...from the time we bought him to the time we got rid of him, so about 7 years. It never effected him at all, he was able to keep weight on he drank enough water, he was all around healthy. He used to be at a barn with little turn out and no grass, then we moved him to a farm with huge grassy fields, and his stools were still the same.
I actually never even thought about it being a health problem until I read your post.
Maybe it's just how your horse is.
Last edited by ErikaLynn; 11-02-2010 at 04:52 PM.