You can try goat milk, if you want to feed your baby some protein in liquid form. Often works very well for infants with cow's milk allergies. (Luckily many kids grow out of this.) If goat milk doesn't work, the other option would be to contact a breast milk bank for supplements. Your pediatrician can offer proper guidance.
obviously the baby is defective take it back to the hospital and ask for a refund make sure to bring the receipt, i know it sounds mean but we dont need sickly weak people taking up space natural selection you could always put it in the recycle bin hahahahahaha