Canadian Brand. Basic Instincts Cat Kangaroo formula is not a typical meat that you'd think of for a cat, however this protein source has cats asking for more! This Kangaroo formula was designed for cats with severe allergies, and only contains kangaroo muscle meat as a single source meat protein (also contains steamed lamb bone meal as a calcium source). Kangaroo meat is much lower in fat and higher in taurine. For any cat with extreme food sensitivities or allergies, Kangaroo provides a true game meat, but must be fed with other formulas or supplementation as this formula does not contain organ meats.