Last year 5 kittens, not quite four weeks old, were abandon around one of the colonies that I take care off. The biggest one weighed 12 ounces. On the advice of one of our wonderal TNR feral programs here, I was told to feed along with the KMR, Gerber Stage 1 baby food. I would mix it with the KMR and make it real soupy and feed with a syringe. I did this in addition to the KMR. They absolutely loved it and thrived on it. I had one that did have some reflux problems no matter what she ate, so I would feed her less at at time but a little more frequently. Now they are 10 months old and the apples of our eyes........we just couldn't give them up to anyone. Good luck with your babies and I will say some prayers for you.