Canine Caviar Buffalo Buffaroos Dog Treats are extra meaty to give your furry pal a long-lasting, satisfying chew (helping to reduce tartar and maintain your dog's teeth and gums). Canine Caviar Buffalo Buffaroos come from premium quality 100% free-range, grass-fed buffalo. Buffalo graze on open grassland & natural grass - they grow faster than cows so they are not fed growth hormones. Buffalo are very low in sodium, calories, and contain calcium, potassium, and Vitamins B6 & B12.