We're out of ideas for putting weight on Jax, our older GSD. He eats maybe one or two cups of his TOTW a day despite being very active. Vet says he doesn't have any health issues or parasites. He just doesn't have any interest in eating. I don't want a heavy dog, esp. a large breed, but he is too thin. We have to do something. His baby brother has now passed him in both height and weight. How many satin balls a day would we give him in addition to offering him his regular feed?