Thank you for explaining that to me. This may sound stupid, but I didn't know a horse could live on just grain/pellet feed, honestly. Horses are grazing animals, with a need for a near constant intake of grass/hay...doesn't he get hungry between grain/pellet feedings? Why won't the place you keep him at allow hay? Does he get grass?
You don't have to answer my questions, of course....since you started this thread to look for answers and not to be questioned.
I am just curious about his unorthodox diet. I am not one to criticize someone on how they take care of their horse as we all have our own way of doing things and we need to be less critical of each other.
Your reasoning behind your supplementation sounds reasonable to me....I have our horses on supplements also.... and like you, I have reasons for it.