I looked through the archive and I couldn't find this topic, but I've ranted about this before.  I'd be in total support of cutting the world's dependency on commercialized food products down and replacing the obligation of eating with nutrition tubes.  These tubes would be something you could wear on in a backpack or belt pack or something.  I don't expect them to be too large, since they would just be raw nutrients. 

Just like diabetes patients have little insulin cartriges they were like beepers, the same thing could be done with these nutrition packs.  And i see different "flavors" for activities.  one would be a sports pack that has caffeine and protein in it.  Another would be a cleansor that would have lots of antioxidants and such.  When you body build, they say you should be consuming proteins and such every 3 hours or so.  This takes the obligation of preparing food out of the equation.  Saves time, dishes, and effort.

And you don't have to give up food.  You can still eat if you want to.  Your daily nutritional value is coming from the nutrion cartridges, you don't have to make sure you have that "breakfast of champions" or whatever.  You'd probably even appreciate food more.