In GTA V, if I kill NPCs as well as money they sometimes drop snacks as well. What can I do with the snack that I collect? Sell it? So far I’ve not found any use for it, or can’t see any use for it.
You can set your L3+R3/LS+RS to eat a snack which recovers a small amount of health (~5%). You cannot use this action if you are out of snacks. You can also do this through the action menu (hold select).
As a side note, you can buy snacks from gas stations/convenience stores (the ones you rob) if you go up the register and hit right on the dpad.