Hi there, i am the proud owner of a nine yr old GSD bitch with several medical issues which have restricted her diet in the pat. she has short bowel syndrome, after having part of her intestine removed, she was mistreated as a pup, and will not chew food, so it has to be cut up small, and most dog foods tend to upset her tummy.. she has always been lean, but she seems thinner than ever now, and am looking for advice to feed her up! HELP!