Since you're mixing the baby food into cat food, I'd say the answer is "maybe." They can't do baby food 100% for just the reasons you've heard--taurine, etc, but as a treat or a mix-in it might be OK. I'd ask the vet (or even more than one, such as VetPet. LOL). As you've heard, a/d tends to be well-liked, and have you tried any of the multitudes of kitty meal replacers in a tube (Nutri-Cal, etc.)? My monsters find 9 Lives Tuna Select irresistible, even with meds mixed in!!