I am so sorry to be hearing this. I would keep her on a diet of boiled lean ground beef and rice. Maybe mix an egg in to give it some flavor. This may sound too simple but has your vet tested her for coccidia? I'm no vet either but when my dogs are off for a few days I let would let their tummy settle then only offer the boiled beef and rice. I wouldn't give ensure or baby food unless my vet said it was ok. some baby foods today are now made with onion so that is something to check for.