Sodium polyphosphate binds salivary calcium, making it unavailable for tartar formation. 

Diluting urine decreases the urinary concentration of struvites and calcium oxalates. The larger urinary volume also ensures regular bladder wash-out.

Highly digestible protein (wheat gluten) limits fermentation processes in the intestine, thus reducing flatulence. Rice, a highly digestible source of starch, improves the overall diet digestibility. FOS and beet pulp stimulate the growth of a beneficial intestinal flora.

Psyllium and dietary fibres facilitate hairball elimination and help prevent hairball-related problems such as vomiting and/or constipation.