Rescue cat, no teeth, how much to feed her.

I recently rescued a severely underweight female cat who has no teeth. I have been feeding her a diet of moistened hard food and one can of soft food per day. I need to know what the best soft food for her and how much of it to feed to her. She is about 5 pounds right now but should weigh more.

If she's that underweight, I would feed her as much as she wants until she reaches a healthy weight. Generally kitten wet food is higher in fat and calories which is what she needs. Bless you for rescuing her!