Food already does give a permenant boosts (not bonus) to hit points, which is all I said to begin with. Calling this a "food and bullshit" idea isn't correct or helpful.
It's NOT intended for all areas; if the showers and/or water heater doesn't work, then it wouldn't work (ie, anything in the bone yard). The waterbag idea might work, and you can build an improvesed shower (dets iled in army feild manuals), but I really wasn't thinking of those.
