Psyllium is used for animal feed.
Psyllium is used for veterinary practices because psyllium seed husk contains 80 percent water-soluble fiber; it can capture and move sand through a horse’s digestive system.
Psyllium is also used as horse feed; even foals feed without any harmful side effects.
Psyllium prevents sand accumulation in animals, mainly in sandy regions.
To prevent choking when feeding psyllium, a horse should have unlimited access to water, and horses that bolt their grain should be slowed down with large rocks in their feeders.