Hello, i have two 7 month old kittens, a male and female. I have been feeding them royal canin and hills kitten dry food. The vet told me i can start them on adult food now. When i went to buy their food there was only royal canin neutered male food. The vet told me it was ok to feed my female cat on this also. I bought it, but have my doubts, as male food is more for weight control, and my female is smaller. She said this is what vets recommend if you have one of each. Is this ok?