OC Raw Dog Freeze-Dried Chicken HeartsSourced from USA suppliers ONE simple ingredient = NOTHING ELSE!! Raw and simple so dogs & cats can take advantage of the health benefits High in Taurine, an amino acid which plays a critical role in cardiac and cardiovascular health Made from chickens processed for human consumption and without added hormones or antibiotics Ingredients: Freeze Dried Chicken Heart Purpose ONE SIMPLE INGREDIENT: USA Grown and Processed Chicken Hearts. USA grown raised