sul sito inglese della royal c'è questo
Ingredients: dehydrated poultry meat, rice, maize, vegetable protein isolate*, animal fats, wheat, vegetable fibres, hydrolysed animal proteins, minerals, beet pulp, fish oil, vegetable oils (soya and borage), fructo-oligo-saccharides, psyllium husks and seeds, sodium polyphosphate, hydrolysed yeast (source of mannan-oligo-saccharides), taurine, hydrolysed crustaceans (source of glucosamine), marigold extract (source of lutein), L- carnitine, hydrolysed cartilage (source of chondroitin).