Raw meaty bones are an integral part of feeding a raw diet and are the principal source of calcium. They are also a complex source of a wide variety of nutrients including minerals, essential fatty acids and vitamins. The central parts of large bones contain marrow, which is a highly nutritious mix of elements, including iron, used to form red blood cells. Raw bones also provide natural antioxidants and enzymes. Bones are full of nutrients. It is easy to understand why the dog wants the meat and marrow, but what makes the bone itself so desirable? The answer is threefold. Firstly, bones contain a number of nutrients that are vital to your dog's health. Secondly, meaty bones are nature’s toothbrushes. They keep your dog's teeth clean and gums healthy. Plaque can't build up and decay is prevented. The third benefit of giving your dog a bone is more psychosomatic. Dogs that have a raw bone to chew are happier and calmer, chewing a bone releases endomorphines which provide a sense of well-being. PLEASE NOTE with ALL BONES we recommend you supervise your pet. NEVER feed cooked bones. Please choose a product that is appropriate to your dogs age, size and breed.