First of all Royal Canin is an excellent brand of cat food.
Second, what we know about mother and babycat can is designed specifically for mothers and young kittens, but actually it's an excellent formula for sickly elderly cats too especially for those cats who have teeth and gum problems and not inclined to eat or who have very limited appetite like one of my cats😔, really it stimulate appetite, easy to chew, and helps in gaining weight. In overall, it's yummy for the tummy 😊and all of my cats they absolutely love it.
It is expensive, but it is worth it
Highly recommended formula if you can fit it to your budget.