Process for preparing dog biscuits which are nutritionally balanced and which contain at least one inorganic pyrophosphate salt. The ingredients and the at least one inorganic pyrophosphate salt are selected and adjusted in amounts to provide a nutritional balance in the dog biscuit dough, from which the dog biscuits are produced. The nutritionally-balanced dog biscuits containing at least one inorganic pyrophosphate salt are chewed and/or eaten by dogs, with the result that tartar accumulations on their teeth are reduced or prevented.
