Royal Canin Veterinary Diets Renal Special RSF 26 Cat Food is a complete dietetic feed for cats formulated to support renal function in the case of chronic or temporary renal insufficiency, through its low level of phosphorus and high quality protein and to reduce oxalate stone formation, through its low level of calcium and vitamin D, and its urine alkalising properties.Key Benefits Enhanced Palatability helps stimulate feeding in cats with renal insufficiency. Low Phosphorus intake is key to help support renal function in cats with chronic renal insufficiency. Vascular support nutrients help support good renal filtration. Digestive Security has nutrients which help support a balanced digestive system.IngredientsMaize flour, rice, dehydrated pork protein**, animal fats, maize gluten, vegetable fibres, maize, hydrolysed animal proteins, minerals, wheat gluten**, chicory pulp, fish oil, soya oil, mono - and diglycerides of palmitic and stearic acids esterified with citric acid, psyllium husks and seeds, fructo-oligosaccharides, marigold extract (source of lutein).Protein sources: dehydrated pork protein**, maize gluten, hydrolysed animal proteins, wheat gluten**. ** L.I.P.: protein selected for its very high digestibility Vitamin A: 22500 IU, Vitamin D3: 800 IU, Iron (3b103): 47mg, Iodine (3b201, 3b202): 4.7mg, Copper (3b405, 3b406): 15mg, Manganese (3b502, 3b504): 61mg, Zinc (3b603, 3b605, 3b606): 147mg, Selenium (3b801, 3b811, 3b812): 0.08mg - Technological additives: Clinoptilolite of sedimentary origin: 10g - Preservatives - Antioxidants. *** Values reflect only levels added to the formula, not those naturally occurring in components of the diet.