I regards to smartgut… the pelleting process kills most of the probiotics. You may want to upgrade to a better probiotic like HealthyGut and see it that inspires the appetite some. (Fun fact:the Tribute probiotic does use/purchase a beer yeast(lol) as their main species but it is coated for PELLETING protection, NOT acid protection as they claim.) apologies if I nerded out too hard 
[QUOTE=S1969;8996042]
But, if the horse still isn’t getting enough hay, this doesn’t help.[/QUOTE]
Sorry! did not see where the OP indicated her horse wasn’t eating hay.
