Each horse is unique... I have four here adn three can go bare just fine but one can't. What I have found with her is that her nutrition level is a tad higher then the other three
I use a ration balancer at 1 1/2 lbs with her as well as remission and MSM and that "seems" to be working at the moment
My other three do great on 1lb and nothing extra.
That is the reason I was asking about diet.