Help reduce the risk of digestive colic with this Farnam? favorite. Only SandClear crumbles contain psyllium seed husk recommended by veterinarians to support the removal of sand and dirt from the ventral colon. This supplementary source of dietary fiber is ideal for horses that graze or eat off the ground. Commonly used during conditions of colic caused by sand and other materials. Supports removal of sand and dirt. Supports gut health and helps maintain a healthy digestive tract. Palatable apple and molasses crumbes are easy to use. Can be given to horses of all ages - even young foals. Veterinarian recommended.