Not far fetched so much but does leave the question of why the little guy is falling over? I felt like the answer to that was the potentially overweight issue though. I hesitate to over react but I am curious what the theory was when the vet prescribed prednisone. I noted flea treatment and then the prednisone and I am wondering: does the skin appear to be irritated? I like simple answers not neurological disorders. That does bring me to skin condition an possible allergies. And if course to the original question of the food. But dietary management and general wellness such as expressed anal glands are a great place to start and hopefully before medication is introduced