I think the whole idea is hilarious. Now, I will admit it doesn't quite fit in GREAT with Phantasy Star, but it's still funny. It DOES add a touch of being in the real world, you know? Not entirely realistic since food doesn't close your wounds, for sure, but funny.
I will also just propose the 'Earthbound argument', in which the vast majority of your healing items are food which can be enhanced by the condiment system. It's funny. Since when did we expect realism from your video games, especially back in the day? Yes, I brought up Earthbound again...