I would feed him grasses and weeds.. but where would I get it? You can't really buy that kind of stuff at a store, can you? I live in a very urban area, plus my yard is clean of any wild grasses or weeds (I pay a lot every month to keep it that way). I have bermuda grass and it's cut very very short.

The vet today gave me some Plex-Sol C vitamin powder to dust his food with... I'm not sure about that though. What do you think?