Originally Posted by Joe4d
go to any dollar store and buy a carton of Epson salt. Maybe a buck for like a quart of the stuff ? It is pure magnesium sulfate, a teaspoon once a day sprinkled on his feed should do wanders if his behavior is a result of magnesium deficiency.
Magnesium sulphate (epsom salts) -- feed that stuff and you will have instant diarrhea. If your horse needs magnesium, you should feed it in glutamate, aspartate, or citrate forms -- much better absorption, much easier on the system.