We have had 3 out of 5 of our horses on this for the last 2 winters and one oldie when she's needed extra help, from when they have to come in off the grass and our turnout becomes unuseable as we're on clay. They can spend up to 5 months on open yards by day and stabled at night and the B-Complete has helped keep their gut comfortable and ensure we don't have runny poo, stressed horses and grumpiness whilst on the yards in their pair. They eat it with no issues and it's easy to store and administer. They stay on it when going back to grass to ensure a smooth transition back to field life. I really rate it.