It is an interesting article. I have to say that I never really thought about how in a game the instant cure for most health problems is a bottle of medication, or a drugs.
I know usually I joke about games where you can instanly heal by waiting, or apply a few bandages to cure disembowelment, but the idea of medkits and especially all the drugs in the later Fallout games are a bit crazier to think about.
Also, I never really thought about why I want to eat food ingame until now. I mean, why would I want to virtually eat food when I can do it in real life. I will not get the same experience seeing my character eat, or hearing him eat usually, but it is something you go out of your way to do. I remember when I played Bioshock, I went around eating, drinking, and smoking everything I could find. I guess it just comes with knowing that you can do something, and that you are making a mark on the world - even if all you are really doing is cleaning up the food supply. I know part of the reason I was so interested in consuming is just to clean up. In Fallout: New Vegas, I would try to take up everything in a room just so I could clean it up and sell it all into useful caps.
I think it would be an interesting idea to have a game that makes a person have to go to a doctor to seek treatment, or a game that doesn't have a magical cure for everything, though that would make life difficult. Also, medkits are very useful to gameplay on the move. Perhaps a simulation type deal where there has to be a medic or something, or a hardcore mode where basic meds are not an instant cure - like fallout's hardcore but harder. It might be something for an adventurous lot. On a final note, I never really thought about it much, but Link is basically consuming the hearts of his fallen enemies for health.