hi there. i have a three year old female husky who has been diagnosed with a liver disorder. im not sure exactly what it is called, but the liver is not turning nitrogen into urea. she also has idiopathic epilepsy. i was told to feed her hill's LD prescription food for 6 weeks. the liver function has improved dramatically, but the vet suggests that i continue feeding her this food. it is very expensive and i was wondering if there isnt any alternatives i could try? any advice would be helpful.