Two, one year old cats. Both indoor/outdoor. Lived well on dry food until the male got a terrible (AND EXPENSIVE) blockage and had to be put on Purina Pro Plan wet food. Now the other eats only wet food and is eating that (because I cannot separate them) so it's become quite expensive. As I said, they both go in and out of the house, so they are active. They are now eating the 5.5 oz cans (each get one in the morning and one at night) - so EACH eats 11oz. per day. Way too much?