Raw feeders: Am I the only person who feels fasting your dog sounds slightly ludicrous?

I don't fast my dogs,but they sometimes fast themselves. I always have dry food down,and some days they don't eat,while the next day they will be ravenous. Of course they never turn down wet food,but sometimes they will take a treat and hide it for later. But I wouldn't fast them on purpose unless it is before a surgery. I figure I like to eat every day,so the dogs do,too.