The only negative thing is the price compared to other super premium brands, due to the reputation and name of Royal Canin. However, I believe it is the best food for the breed, at this reduced price it is currently being sold. Without going into detail about all the ingredients it contains that are beneficial for the heart, skin, coat, muscles, etc., I will only say that there is no other food with such high levels of chondroitin and glucosamine at 1200mg/kg. Alternatively, one would have to buy a dietary supplement for the joints.