I've got an old girl (about 14) with thyperthyroidism that is responding well to meds. Her condition did decline before she was diagnosed. She lost weight, has become a bit arthritic, and lost the shine on her coat.
She's always been a really pretty cat. The vet would always say how athletic she looked. Now she doesn't really groom herself either so we brush her most days.
She gets the whiskas 11+ twice a day which she really seems to like plus dry food to graze on during the day.
Is there a better food for putting on weight and condition for elderly cats?