Kitten & Neutered Cat Mature for the nutritional managements of neutered cats 7 to 10 years. A high protein diet helps maintain muscle mass more effectively than a traditional diet, is highly palatable, & gives a feeling of satiety. For an equal metabolisable energy level, proteins provide 30% less net energy than carbohydrates. L-carnitine promotes the transport of fat into the mitochondria for use as an energy source. The synergistic antioxidant complex (vitamin E, vitamin C, taurine & lutein) helps neutralise free radicals, the negative effects of which increase with age. A restricted phosphorus intake is key to support renal function with age. The kibbles texture & shape promote a mechanical brushing action limiting the formation of dental plaque. Sodium polyphosphate, present on the kibble surface, binds salivary calcium & thus limits tartar formation.