Heart is a muscle like other cuts of steak, but is more dense with a higher nutrient content and additional protein. Beef heart contains all essential amino acids, zinc, selenium and phosphorus. It has more than double the elastin and collagen than other cuts of meat and a highly concentrated source of coenzyme Q10, also known as CoQ10. We are proud to label our beef as Animal Welfare Approved and Grassfed Certified by AGreenerWorld.org. No artificial hormones, steroids or antibiotics.