Dinasport made a difference for my horse within a month, along with omega oil
I stand strongly behind Tribute, especially their Kalm n Ez amd Essential K mixes. Low sugar. Good energy. It will keep some great topline on them as well.
I use gain race horse mix and equestrian cubes
Works a treat for my guy who was extremely skinny when I got him
I recently got a tb that was underweight as he struggled to adjust to his new home at first so i tried a lot of wheight gaining food but Trojan fat worked like a bomb
Hope it works
Hay is the best for weight gain as for hard feed, I find Copra is brilliant.