I love this product!! I switched my horse to this two months ago and I'm already seeing positive changes. I also feel a lot less anxious about trying to work out what "holes" I need to fill in her diet while feeding this, as there ARE no holes! No extra supplements needed! Amino Trace , on its own, has better levels of biotin, copper, zinc, magnesium, etc., than I would find in any supplements I might have needed to add to other commercial feeds, and I love that it doesn't have a bunch of sugary filler. My mare ate it immediately, right out of my hand, and was mooching for more from me. So no palatability issues there at all. She isn't ECIR, but between her being older, and us being in a high iron area, it seems like the best nutritional fit. I also provide loose salt and a plain white sa...