100%, single ingredient Australian protein, Organ meat contains twice as much COLLAGEN as regular meat, which is great for joint health, Heart meat is also a great source of CoQ10, which is an antioxidant that may help treat and prevent heart disease. It has also been shown to slow down the aging process and improve energy levels, We recommend our hearts as training treats. They are diced small and are perfect for taking to the park. They suit all sizes and ages of dogs and cats, and may also be used as a meal topper or in enrichment toys.