Canine Caviar Buffalo Bully Stix are extra meaty to give your dog a long-lasting, satisfying chew (helping to reduce tartar and maintain your dog's teeth and gums). Canine Caviar Buffalo Bully Stix come from premium quality 100% free-range, grass-fed buffalo. Buffalo graze on open grassland & natural grass. Because they are not fed manufactured feed, there is no concern about mad cow disease at this time. Buffalo are very low in sodium, calories, and contain calcium, potassium, and Vitamins B6 & B12.