Our Beef Yum Yums are made from only the beef aorta.
Beef Aorta is the main heart valve and is a good source of protein, fat, and minerals. It is a rich source of iron and zinc. It also contains a fair amount of vitamin B12 and other B vitamins.
This chew is perfect for big chewers and those with sensitive stomachs. 
Also known as Moon Bones, they are a great natural source of glucosamine and chondroitin so they make excellent snack for dogs.
These are not as brittle as Beef Paddywacks, so are easier to chew for all dogs.