I think the following would do best as player to player commodities. NOT something set out to be purchased; I feel that these items would aid roleplay and add a depth to consumables.

 

'Unfiltered Water'- The cheapest of the cheap, this stuff probably just came out of the waters surrounding Arklay. Sure, it'll help you stay hydrated, but there's a chance you'll catch something from it...  [Unfiltered water adds a small amount to Character's hydration meter, though has a chance to deplete some health in the process... Price range 1-5 currency]

 

'Stale Water' - This stuff was probably filtered, but it's definitely been awhile. Maybe it fell behind a shelf, or maybe someone's pack. What matters now is it's all yours! [Stale water adds slightly less than a fresh water bottle to your hydration [More than Unfiltered water]. There's also a chance it's been tampered with... Price range 5-15 currency]

 

'Juice Box' - You're in luck! This stuff is still in date, if you trust juice that stays in-code for over a year... [Juice boxes add more hydration to your hud bar than water. Price Range 20-30 currency]

 

'Expired Juice Box' - Well, if you don't mind your juice tasting more like wine, and possibly carrying some side effects this is the stuff for you! [Stale juice boxes add slightly less hydration to your hud bar than 'juice boxes' and carry a small risk of negatively impacting health. Price range 10-20 currency]

 

'Protein Bar'-  Seems like you stumbled onto some health-nut's stash, or at least a piece of it! [Protein bars provide more to your hunger bar than apples. Price range 25-40 currency]

'Half Eaten Protein Bar' - The bad news is someone beat you to the first half, and who knows what sort've germs they had. The good news? It still looks edible. [Half-Eaten protein bars provide less to your hunger bar than a full bar, but more than an apple. There's also a small chance it will negatively impact your health... Price range 10-25 currency]