Description Beef Ear – 1 piece.  Can dogs eat hair? Yes! Hair is actually very beneficial to the digestive tract. It delivers good levels of fiber and manganese.  The cow hair acts as a natural way to help clean the digestive tract and move things along.  The tough ear cartilage texture helps scrape away plaque and tartar from your dog’s teeth.  Chewing is a natural and healthy activity for dogs, providing enrichment and helping to reduce anxiety.