My horse was diagnosed this spring. I do not know what type he has. He has made a wonderful recovery on the proper diet. I do not remember the grain he is on but there are many high fat ones on the market know. I give him the kool calories and Vitamin e and selenium from smartpak. I also put a 1/2 cup of canola oil in his feed morning and night. He wore a muzzle all summer in the field and had his hay soaked. We just today took his muzzle off since the grass has pretty much stopped growing. I hope this gives you some ideas on diet.