Royal Canin dry food: which product is best for my cats?

NEVER give a cat dry food it can wreck his liver and kidneys and cause skin problems like dandruff, get canned or pouched food with as little cereal and grains in it as possible , these crooked vets make a huge profit and commission from recommending and selling dry food, if you look on the pack it says you must ensure the animal gets plenty to drink that's because it will wreck his kidneys and liver if it doesn't, have you ever tried to make an unwilling cat drink? dry food is packed with cereal and preservatives and even ground up dead pets according to a recent investigation, there is plenty of information about this all over the internet