I found this article; How to Prevent Polysaccharide Storage Myopathy (PSSM) in Your Horse | SmartPak Equine Blog
This vet feeds her PSSM horse
Some experts recommend feeding up to 1 pound of fat a day, but Iíve found a half pound works just fine in my own horse. I feed him four ounces of Cool Calories AM and PM, with SmartE in the morning and MSM in the evening.
Does this sound alright to go off of and try?
If I fed the above it would cost me $106.70 a month to get it in Smart Paks. Not terrible. I just bought the Vit E so I could just get the stuff and make it myself to get him going with it.
I know I can trust my trainer to make this stuff correctly every day... But I'm sure she would appreciate not having to do it!
He was on MSM... But we stopped after he got better but I suppose it doesn't hurt?
She is feeding, as stated, a half pound of fat a day, but in addition to this my horse also would get the Ultium and hay. So I would guess he would get a bit more fat?
The trainer says he is doing well, and his only issue she has seem is he is stiff through the back. Added fat should help, but she suggested a chiropractor too... So hopefully with all this he should be on a good path!