Do you mean T/D or does your baby have a kidney problem?
I'm told that T/D was tested on Yorkie specifically. They tend to win the breed with the worst teeth award.
I won't say not to feed it because your vet specifically recommended it, and they are right, she will very likely have tooth issues. However, this food is not generally recommended unless there is already a problem. Home care and dentals as needed is the usual route.