Many dogs will eat themselves sick; they don't know when to stop. If food is there, they will eat it. Cats tend not to do that, but they can be taught over time to eat when they don't need to. That's what is happening.

I'm looking after four cats, at the moment. Two of them are used to a midday meal, or an additional dish if they don't like what they're given. But the other residents are away for 6 weeks - this means the cats can only get fresh food of a morning and of an evening. It will be interesting to see if that's long enough to change their habits...

Wade.