A natural, and highly digestible source of calcium is provided by raw bones, and is required to provide a natural balance to the higher levels of phosphorous found in raw meat.
 
Crude Protein - 39.2%
Crude Fat - 35.0%
Phophorus g/kg - 18.68g
Crude Fibre - <0.1%
Ash - 10.45%
Moisture (Max) - 5.00%
Taurine (mg/kg) - 1849.33mg 
Energy (kcal/kg) - 1960kj
Calcium (g / kg) - 40.66g / kg