 This study found that cats fed a high-protein diet experienced increased urinary volume, urinary calcium levels, renal calcium and oxalate excretion, as well as higher urinary relative supersaturation, RSS, with calcium oxalate. This suggests that a high-protein diet could potentially lead to the development of calcium oxalate crystals in cats. This article was authored by Nadine Parslack, Honis Burmire, Thomas Brenton, and others.