The Beef Bone Broth comes in a 230ml pouch and has between 9 - 12 calories per 100ml depending on the flavour. It is cooked for at least 12 hours to separate the useful parts of the bone (collagen) and enabling the removal of fat, making the broth low in calories with zero fat. Bone Broth is great to increase your pets fluid levels especially on hot days. You can pour the Broth into dry, wet or raw food. You can also freeze the Broth to create cooling treats for your pets.